Alternatived Products of [ 1579-78-8 ]
Product Details of [ 1579-78-8 ]
CAS No. : | 1579-78-8 |
MDL No. : | MFCD00052838 |
Formula : |
C9H9FO3
|
Boiling Point : |
- |
Linear Structure Formula : | - |
InChI Key : | - |
M.W : | 184.16 g/mol |
Pubchem ID : | - |
Synonyms : |
|
Application In Synthesis of [ 1579-78-8 ]
* 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.
- Upstream synthesis route of [ 1579-78-8 ]
- Downstream synthetic route of [ 1579-78-8 ]
- 1
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[ 1579-78-8 ]

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[ 66892-34-0 ]
Yield | Reaction Conditions | Operation in experiment |
83% |
With PPA for 0.333333h; Heating; |
|
76% |
With sulfuric acid |
5 EXAMPLE 5
EXAMPLE 5 A mixture of 30.0 g (163.0 mmol) of 3-(4-fluorophenoxy)propionic acid and 180 ml of concentrated sulfuric acid was stirred for 1 hour at room temperature and then the reaction mixture was poured into 700 g of ice to deposit immediately a white crystal. The white crystal was collected by filtration, washed with water and dried in air, and the resultant was recrystallized from ethanol to give 20.55 g of 6-fluoro-4-chromanone as a white crystal (yield: 76%). mp: 113° to 115° C. (A value described in a literature is 114° to 116° C.) |
75% |
With acid activated montmorillonite K-10 In toluene for 0.75h; Reflux; Inert atmosphere; |
General experimental procedure for the synthesis of chroman-4-one (4a-4p)
General procedure: A mixture of 3-aryloxypropionic acid 3a-3o (1.0 mmol) and freshly prepared AA.Mont.K-10 (300% by weight) in toluene (2 mL) was heated to reflux under inert atmosphere for the specified time (30-45 minutes). After reaction completion, reaction mixture is cooled and added CH2Cl2 (10-15 mL). Filtered the AA.Mont.K-10 and washed twice with CH2Cl2. The organic filtrate is concentrated and the crude mass is extracted with hexane (10-15 mL) to afford pure chromanones 4a-4p. |
Reference:
[1]Sarges; Bordner; Dominy; Peterson; Whipple
[Journal of Medicinal Chemistry, 1985, vol. 28, # 11, p. 1716 - 1720]
[2]Current Patent Assignee: KANEKA CORPORATION - US4625042, 1986, A
[3]Begum, Ayisha F.; Balasubramanian, Kalpattu K.; Shanmugasundaram, Bhagavathy
[Tetrahedron Letters, 2021, vol. 82]
- 2
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[ 1579-78-8 ]

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[ 81098-60-4 ]
Yield | Reaction Conditions | Operation in experiment |
|
Multi-step reaction with 7 steps
1.1: 61 percent / PivCl; Et3N; MS 4 Angstroem / toluene / 16 h / Heating
2.1: 36 percent / PhI(OAc)2; KOH / 14 h / 20 °C
3.1: 71 percent / Ag2O / dimethylformamide / 3 h / 0 - 20 °C
4.1: 80 percent / AcOH
5.1: 79 percent / pyridine / toluene / 3 h / Heating
6.1: BH3*THF / tetrahydrofuran / 18 h / 0 - 20 °C
6.2: 51 percent / AcOH / 1 h / 50 °C
7.1: 90 percent / EtOCOCl; 1-hydroxybenzotriazole; Et3N / dimethylformamide |
|
- 3
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[ 590-92-1 ]

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[ 371-41-5 ]

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[ 1579-78-8 ]
- 4
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[ 1579-78-8 ]

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[ 113209-68-0 ]