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[ CAS No. 28241-99-8 ] {[proInfo.proName]}

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Chemical Structure| 28241-99-8
Chemical Structure| 28241-99-8
Structure of 28241-99-8 * Storage: {[proInfo.prStorage]}
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Product Details of [ 28241-99-8 ]

CAS No. :28241-99-8 MDL No. :MFCD00464117
Formula : C11H10O3 Boiling Point : -
Linear Structure Formula :- InChI Key :SPVYQEMDTUNTIB-UHFFFAOYSA-N
M.W : 190.20 Pubchem ID :777693
Synonyms :

Calculated chemistry of [ 28241-99-8 ]

Physicochemical Properties

Num. heavy atoms : 14
Num. arom. heavy atoms : 9
Fraction Csp3 : 0.18
Num. rotatable bonds : 1
Num. H-bond acceptors : 3.0
Num. H-bond donors : 1.0
Molar Refractivity : 53.4
TPSA : 50.44 Ų

Pharmacokinetics

GI absorption : High
BBB permeant : Yes
P-gp substrate : No
CYP1A2 inhibitor : Yes
CYP2C19 inhibitor : No
CYP2C9 inhibitor : No
CYP2D6 inhibitor : No
CYP3A4 inhibitor : No
Log Kp (skin permeation) : -6.0 cm/s

Lipophilicity

Log Po/w (iLOGP) : 1.83
Log Po/w (XLOGP3) : 2.05
Log Po/w (WLOGP) : 2.65
Log Po/w (MLOGP) : 0.86
Log Po/w (SILICOS-IT) : 2.69
Consensus Log Po/w : 2.02

Druglikeness

Lipinski : 0.0
Ghose : None
Veber : 0.0
Egan : 0.0
Muegge : 1.0
Bioavailability Score : 0.55

Water Solubility

Log S (ESOL) : -2.72
Solubility : 0.362 mg/ml ; 0.0019 mol/l
Class : Soluble
Log S (Ali) : -2.74
Solubility : 0.348 mg/ml ; 0.00183 mol/l
Class : Soluble
Log S (SILICOS-IT) : -3.44
Solubility : 0.0695 mg/ml ; 0.000366 mol/l
Class : Soluble

Medicinal Chemistry

PAINS : 0.0 alert
Brenk : 0.0 alert
Leadlikeness : 1.0
Synthetic accessibility : 2.46

Safety of [ 28241-99-8 ]

Signal Word:Warning Class:
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P330-P363-P501 UN#:
Hazard Statements:H302-H312-H332 Packing Group:
GHS Pictogram:

Application In Synthesis of [ 28241-99-8 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 28241-99-8 ]

[ 28241-99-8 ] Synthesis Path-Downstream   1~51

  • 1
  • [ 28241-99-8 ]
  • [ 108-24-7 ]
  • [ 28221-76-3 ]
YieldReaction ConditionsOperation in experiment
With pyridine
  • 5
  • [ 28241-99-8 ]
  • [ 96-34-4 ]
  • methyl 2-((3-acetyl-2-methylbenzofuran-5-yl)oxy)acetate [ No CAS ]
YieldReaction ConditionsOperation in experiment
75% With potassium carbonate; potassium iodide In N,N-dimethyl-formamide; acetone for 50h; Heating;
  • 6
  • [ 28241-99-8 ]
  • [ 74-88-4 ]
  • [ 33038-29-8 ]
YieldReaction ConditionsOperation in experiment
82% Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: methyl iodide In N,N-dimethyl-formamide at 20℃; for 2h; Inert atmosphere;
82% Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: methyl iodide In N,N-dimethyl-formamide at 20℃; for 2h;
72% With potassium carbonate; potassium iodide In N,N-dimethyl-formamide; acetone for 50h; Heating;
42% With potassium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 2.75h; 3.2.1. 3-Acetyl-5-methoxy-2-methylbenzofuran 9 3-Acetyl-5-hydroxy-2-methylbenzofuran 833 (1.62 g, 8.5 mmol)in DMF (30 mL) was added to a stirring suspension of potassium hydride (0.61 g, 15.2 mmol) in DMF (50 mL) at 0 °C. The mixturewas stirred at room temperature for 45 min. Iodomethane(1.80 g, 12.7 mmol) was added dropwise at 0 °C and the mixture allowed to warm to room temperature. After 2 h saturated ammonium chloride solution was added and the mixture extracted with ethyl acetate. The ethyl acetate layer was washed thoroughly with hydrochloric acid (1 M), dried (MgSO4) and concentrated.The crude product was purified by chromatography eluting with dichloromethane to yield the title compound as a colorless solid (0.74 g, 42%), mp 69-70 °C (lit.,41 mp 72 C); δH(300 MHz; CDCl3) 7.48 (1H, d, J 2.6, 4-H), 7.33 (1H, d, J 8.9,7-H), 6.89 (1H, dd, J 8.9, J 2.6, 6-H), 3.88 (3H, s, OMe), 2.76 (3H,s, Me), 2.62 (3H, s, Me).

  • 7
  • N,N'-ethylenebis(4-iminopentan-2-one) [ No CAS ]
  • [ 106-51-4 ]
  • [ 28241-99-8 ]
YieldReaction ConditionsOperation in experiment
74% In acetic acid at 65 - 70℃; for 6h;
  • 8
  • [ 123-54-6 ]
  • [ 106-51-4 ]
  • [ 28241-99-8 ]
YieldReaction ConditionsOperation in experiment
65% With bismuth(III) chloride In toluene for 8h; Inert atmosphere; Reflux;
61% With zinc(II) chloride In ethanol for 40h; Heating;
45% With copper(II) bis(trifluoromethanesulfonate) In toluene for 10h; Reflux; Inert atmosphere;
  • 10
  • [ 28241-99-8 ]
  • C21H24O6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C / Inert atmosphere 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C 2.2: -78 - 20 °C
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere
  • 11
  • [ 28241-99-8 ]
  • C19H20O6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C / Inert atmosphere 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C 2.2: -78 - 20 °C 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C
  • 12
  • [ 28241-99-8 ]
  • [ 1286707-83-2 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C / Inert atmosphere 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C 2.2: -78 - 20 °C 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
Multi-step reaction with 5 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C / Inert atmosphere 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C 2.2: -78 - 20 °C 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h 5.1: hexane / UV-irradiation
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
Multi-step reaction with 6 steps 1: sodium hydroxide / 1,4-dioxane / 2 h / 20 °C 2: sodium hydride; methanol / tetrahydrofuran 3: potassium hydroxide / methanol / 4 h / Reflux 4: 0.08 h / Reflux 5: toluene / UV-irradiation 6: toluene / Irradiation

  • 13
  • [ 28241-99-8 ]
  • [ 1286707-82-1 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C / Inert atmosphere 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C 2.2: -78 - 20 °C 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
Multi-step reaction with 4 steps 1: sodium hydroxide / 1,4-dioxane / 2 h / 20 °C 2: sodium hydride; methanol / tetrahydrofuran 3: potassium hydroxide / methanol / 4 h / Reflux 4: 0.08 h / Reflux
  • 14
  • [ 123-54-6 ]
  • [ 28241-99-8 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: water / 2 h / 20 °C 2: acetic acid / 2 h
Multi-step reaction with 2 steps 1: water / 2 h / 20 °C 2: acetic acid / 2 h
Multi-step reaction with 2 steps 1: water / 2 h / 20 °C 2: nitromethane / 2 h
  • 15
  • [ 111-24-0 ]
  • [ 28241-99-8 ]
  • [ 1333407-64-9 ]
YieldReaction ConditionsOperation in experiment
81% Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: 1,5-dibromo-pentane In N,N-dimethyl-formamide at 20℃; for 2h;
  • 16
  • [ 23652-85-9 ]
  • [ 106-51-4 ]
  • [ 28241-99-8 ]
  • [ 135333-93-6 ]
YieldReaction ConditionsOperation in experiment
53% In nitromethane for 2h;
  • 17
  • [ 28241-99-8 ]
  • [ 1286707-86-5 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h 5.1: dichloromethane / 0.08 h / UV-irradiation
Multi-step reaction with 5 steps 1: sodium hydroxide / 1,4-dioxane / 2 h / 20 °C 2: sodium hydride; methanol / tetrahydrofuran 3: potassium hydroxide / methanol / 4 h / Reflux 4: 0.08 h / Reflux 5: toluene / UV-irradiation
  • 18
  • [ 28241-99-8 ]
  • (E)-4-(3-{1-[2,5-dioxo-4-(propan-2-ylidene)dihydrofuran-3(2H)-ylidene]ethyl}-2-methylbenzofuran-5-yloxy)butanoic acid [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
  • 19
  • [ 28241-99-8 ]
  • (E)-3-{1-[5-(5-ethoxypentyloxy)-2-methylbenzofuran-3-yl]ethylidene}-4-(propan-2-ylidene)dihydrofuran-2,5-dione [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
  • 20
  • [ 28241-99-8 ]
  • (E)-3-{1-[5-(allyloxy)-2-methylbenzofuran-3-yl]ethylidene}-4-(propan-2-ylidene)dihydrofuran-2,5-dione [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
  • 21
  • [ 28241-99-8 ]
  • (E)-3-{1-[5-(4-bromobenzyloxy)-2-methylbenzofuran-3-yl]ethylidene}-4-(propan-2-ylidene)dihydrofuran-2,5-dione [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
  • 22
  • [ 28241-99-8 ]
  • (E)-3-{1-[5-(anthracen-9-ylmethoxy)-2-methylbenzofuran-3-yl]ethylidene}-4-(propan-2-ylidene)dihydrofuran-2,5-dione [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
  • 23
  • [ 28241-99-8 ]
  • (E)-3-[1-(6-bromo-5-methoxy-2-methylbenzofuran-3-yl)ethylidene]-4-(propan-2-ylidene)dihydrofuran-2,5-dione [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: bromine / acetic acid 3.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 3.2: -78 - 20 °C / Inert atmosphere 4.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 5.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h
  • 24
  • [ 28241-99-8 ]
  • C22H22O7 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h 5.1: dichloromethane / 0.08 h / UV-irradiation
  • 25
  • [ 28241-99-8 ]
  • C25H30O6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h 5.1: dichloromethane / 0.08 h / UV-irradiation
  • 26
  • [ 28241-99-8 ]
  • C21H20O5 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h 5.1: dichloromethane / 0.08 h / UV-irradiation
Multi-step reaction with 5 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h 5.1: dichloromethane / 0.08 h / UV-irradiation
  • 27
  • [ 28241-99-8 ]
  • C25H21BrO5 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 4.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h 5.1: dichloromethane / 0.08 h / UV-irradiation
  • 28
  • [ 28241-99-8 ]
  • C19H17BrO5 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 6 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: bromine / acetic acid 3.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 3.2: -78 - 20 °C / Inert atmosphere 4.1: potassium hydroxide / ethanol; water / 20 h / 70 °C 5.1: dicyclohexyl-carbodiimide / dichloromethane / 48 h 6.1: dichloromethane / 0.08 h / UV-irradiation
  • 29
  • [ 28241-99-8 ]
  • (2Z)-2-[1-(5-methoxy-2-methylbenzo[b]furan-3-yl)ethylidene]-3-(2-propylidene)butanedioic acid [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C
Multi-step reaction with 3 steps 1: sodium hydroxide / 1,4-dioxane / 2 h / 20 °C 2: sodium hydride; methanol / tetrahydrofuran 3: potassium hydroxide / methanol / 4 h / Reflux
  • 30
  • [ 28241-99-8 ]
  • C22H24O8 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C
  • 31
  • [ 28241-99-8 ]
  • C25H32O7 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / water / 20 h / 70 °C
  • 32
  • [ 28241-99-8 ]
  • C21H22O6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C
Multi-step reaction with 3 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C
  • 33
  • [ 28241-99-8 ]
  • C25H23BrO6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C
  • 34
  • [ 28241-99-8 ]
  • C33H28O6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere 3.1: potassium hydroxide / ethanol; water / 20 h / 70 °C
  • 35
  • [ 28241-99-8 ]
  • C19H19BrO6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: bromine / acetic acid 3.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 3.2: -78 - 20 °C / Inert atmosphere 4.1: potassium hydroxide / ethanol; water / 20 h / 70 °C
  • 36
  • [ 28241-99-8 ]
  • C25H31BrO6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere
  • 37
  • [ 28241-99-8 ]
  • C23H26O6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere
  • 38
  • [ 28241-99-8 ]
  • C27H27BrO6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere
  • 39
  • [ 28241-99-8 ]
  • C35H32O6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere
  • 40
  • [ 28241-99-8 ]
  • C21H23BrO6 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: bromine / acetic acid 3.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 3.2: -78 - 20 °C / Inert atmosphere
  • 41
  • [ 28241-99-8 ]
  • [ 2969-81-5 ]
  • [ 1333407-60-5 ]
YieldReaction ConditionsOperation in experiment
67% Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: Ethyl 4-bromobutyrate In N,N-dimethyl-formamide at 20℃; for 2h;
  • 42
  • [ 28241-99-8 ]
  • [ 2969-81-5 ]
  • C26H32O8 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C 2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 1 h / -78 °C / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere
  • 43
  • [ 28241-99-8 ]
  • [ 2417-77-8 ]
  • [ 1333407-72-9 ]
YieldReaction ConditionsOperation in experiment
82% Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: 9-bromoethylanthracene In N,N-dimethyl-formamide at 20℃; for 2h;
  • 44
  • [ 28241-99-8 ]
  • [ 106-95-6 ]
  • [ 1333407-66-1 ]
YieldReaction ConditionsOperation in experiment
82% Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: allyl bromide In N,N-dimethyl-formamide at 20℃; for 2h;
  • 45
  • [ 28241-99-8 ]
  • [ 106-96-7 ]
  • [ 1333407-68-3 ]
YieldReaction ConditionsOperation in experiment
79% Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: propargyl bromide In N,N-dimethyl-formamide at 20℃; for 2h;
  • 46
  • [ 28241-99-8 ]
  • [ 589-15-1 ]
  • [ 1333407-70-7 ]
YieldReaction ConditionsOperation in experiment
71% Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: 1-bromomethyl-4-bromobenzene In N,N-dimethyl-formamide at 20℃; for 2h;
  • 47
  • [ 28241-99-8 ]
  • [ 109-64-8 ]
  • [ 1333407-66-1 ]
YieldReaction ConditionsOperation in experiment
Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: 1,3-dibromo-propane In N,N-dimethyl-formamide at 20℃; for 2h;
  • 48
  • [ 28241-99-8 ]
  • [ 112-82-3 ]
  • 3-acetyl-5-hexadecyloxy-2-methylbenzo[b]furan [ No CAS ]
YieldReaction ConditionsOperation in experiment
55% With sodium ethanolate In ethanol for 0.5h; Reflux;
  • 49
  • [ 28241-99-8 ]
  • [ 638-45-9 ]
  • 3-acetyl-5-hexyloxy-2-methylbenzo[b]furan [ No CAS ]
YieldReaction ConditionsOperation in experiment
70% With sodium ethanolate In ethanol for 0.5h; Reflux;
  • 50
  • [ 28241-99-8 ]
  • C23H26O8 [ No CAS ]
  • C23H26O8 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere 1.2: 2 h / 20 °C / Inert atmosphere 2.1: n-butyllithium; diisopropylamine / hexane; tetrahydrofuran / 1 h / -78 °C / Inert atmosphere 2.2: 48 h / -78 - 20 °C / Inert atmosphere
  • 51
  • [ 28241-99-8 ]
  • [ 96-32-2 ]
  • methyl 2-((3-acetyl-2-methylbenzofuran-5-yl)oxy)acetate [ No CAS ]
YieldReaction ConditionsOperation in experiment
83% Stage #1: 1-(5-hydroxy-2-methylbenzofuran-3-yl)ethan-1-one With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: bromoacetic acid methyl ester In N,N-dimethyl-formamide at 20℃; for 2h; Inert atmosphere;
Same Skeleton Products
Historical Records

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[ 28241-99-8 ]

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