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Chemical Structure| 179897-89-3

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Product Details of 5-Bromo-2-fluorobenzonitrile

CAS No. :179897-89-3
Formula : C7H3BrFN
M.W : 200.01
SMILES Code : FC1=CC=C(Br)C=C1C#N
MDL No. :MFCD00143424
InChI Key :GYCNHFWRPJXTSB-UHFFFAOYSA-N
Pubchem ID :2724900

Safety of 5-Bromo-2-fluorobenzonitrile

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302+H312+H332-H315-H319-H335
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312-P304+P340+P312-P305+P351+P338-P332+P313-P337+P313-P403+P233-P405-P501

Application In Synthesis of 5-Bromo-2-fluorobenzonitrile

* 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 [ 179897-89-3 ]

[ 179897-89-3 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 179897-89-3 ]
  • [ 73183-34-3 ]
  • [ 775351-57-0 ]
YieldReaction ConditionsOperation in experiment
81% With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate; In 1,4-dioxane; dichloromethane; N,N-dimethyl-formamide; at 100.0℃;Sealed tube; 2-Fluoro-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzonitrile A mixture of 5-Bromo-2-fluoro-benzonitrile (1000.00 mg; 5.00 mmol; 1.00 eq.), 4,4,5,5,4',4',5',5'-Octamethyl-[2,2']bi[[1,3,2]dioxaborolanyl] (1396.61 mg; 5.50 mmol; 1.10 eq.), potassium acetate (1472.07 mg; 15.00 mmol; 3.00 eq.) in dioxane (10 mL) and DMf (1 mL) was degassed, then [1,1']-bis(diphenyl phosphino) ferrocene]dichloropalladium(II), complex with dichloromethane(1:) (366.85 mg; 0.50 mmol; 0.10 eq.) was added and the sealed vial was heated at 100 C. for overnight. The reaction mixture was cooled and filtered through a pad of Celite. The solvent was removed and the crude product was purified through flash chromatography on silica gel (EtOAc:hexanes from 0% to 5%) to obtain 2-Fluoro-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzonitrile (1.0 g, 81%)
72% With potassium acetate;(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; In 1,4-dioxane; at 100.0℃;Inert atmosphere; 6(pinacolato)diboron (1.9 g, 7.48 mmol), and KOAc (1.47 g, 14.98 mmol) in 1,4- dioxane (10.0 mL) that was degassed with argon for 10 min was added PdCl2(dppf) (10 mg, 0.014 mmol). The reaction mixture was heated to 100 0C overnight. The reaction mixture was filtered through Celite 521 and rinsed through with EtOAc (10 mL). The filtrate was concentrated in vacuo and treated with CH2Cl2 (10 mL) and water (10 mL). The layers were separated, and the aqueous layer was extracted with CH2Cl2 (5 mL). The combined organic layers were washed with brine (5 mL), dried over Na2SO4, filtered, and concentrated in vacuo onto Isolute. Purification via flash column chromatography (0- 20% EtOAc/hexanes) afforded the title compound (1.03 g, 72%). LC-MS m/z 248 (M+H)+, 1.15 min (ret time).
  • 2
  • [ 67-56-1 ]
  • [ 179897-89-3 ]
  • [ 144649-99-0 ]
  • 3
  • [ 1209780-71-1 ]
  • [ 179897-89-3 ]
  • tert-butyl 4-(4-bromo-2-cyanophenoxy)-3,3-difluoropiperidine-1-carboxylate [ No CAS ]
YieldReaction ConditionsOperation in experiment
To a mixture of NaH (8.35 g, 208.0 mmol, 60.0% purity, 1.1 eq) in DMF (225 mL) was added a solution of compound Z9 (45.0 g, 190.0 mmol, 1 eq) in DMF (90 mL) at 0 C and the mixture was stirred at 0 C for 0.5 h. A solution of compound 1A (37.9 g, 190.0 mmol, 1 eq) in DMF (45 mL) was added dropwise and the mixture was stirred at 25 C for 0.5 h. The reaction mixture was poured into aqueous saturated NH4C1 (500 mL), extracted with ethyl acetate (800 mL x 2). The organic phase was washed with water (300 mL x 2), brine (300 mL), dried over sodium sulfate, filtered and concentrated under vacuum to give a crude product. The crude product was purified by silica gel chromatography (Petroleum ether/Ethyl acetate=10/l, 1/2) to afford compound Z10 (79.0 g, 177.0 mmol, 93.3% yield, 93.5% purity) as an yellow oil. LCMS: RT = 0.994 min, MS[M+Na]+ = 439.0; NMR:, CDC13 400MHz. delta 7.69 (d, / = 3.6 Hz, 1H), 7.65 (dd, J = 3.6, 8.8 Hz, 1H), 6.99 (d, J = 8.8 Hz, 1H), 4.65 (dd, J = 3.2, 6.4 Hz, 1H), 4.38 - 4.13 (m, 1H), 4.05 - 3.84 (m, 1H), 3.76 - 3.51 (m, 1H), 3.48 - 3.22 (m, 1H), 2.14 - 2.05 (m, 2H), 1.48 (s, 9H).
 

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Technical Information

• Alkyl Halide Occurrence • Baeyer-Villiger Oxidation • Barbier Coupling Reaction • Baylis-Hillman Reaction • Blaise Reaction • Bucherer-Bergs Reaction • Catalytic Hydrogenation • Clemmensen Reduction • Complex Metal Hydride Reductions • Corey-Bakshi-Shibata (CBS) Reduction • Corey-Chaykovsky Reaction • Fischer Indole Synthesis • General Reactivity • Grignard Reaction • Henry Nitroaldol Reaction • Hiyama Cross-Coupling Reaction • Horner-Wadsworth-Emmons Reaction • Hydride Reductions • Kinetics of Alkyl Halides • Kumada Cross-Coupling Reaction • Lawesson's Reagent • Leuckart-Wallach Reaction • McMurry Coupling • Meerwein-Ponndorf-Verley Reduction • Passerini Reaction • Paternò-Büchi Reaction • Petasis Reaction • Peterson Olefination • Pictet-Spengler Tetrahydroisoquinoline Synthesis • Preparation of Aldehydes and Ketones • Preparation of Amines • Prins Reaction • Reactions of Aldehydes and Ketones • Reactions of Alkyl Halides with Reducing Metals • Reactions of Amines • Reactions of Benzene and Substituted Benzenes • Reactions of Dihalides • Reformatsky Reaction • Ritter Reaction • Robinson Annulation • Schlosser Modification of the Wittig Reaction • Schmidt Reaction • Specialized Acylation Reagents-Ketenes • Stille Coupling • Stobbe Condensation • Substitution and Elimination Reactions of Alkyl Halides • Suzuki Coupling • Tebbe Olefination • Thorpe-Ziegler Reaction • Ugi Reaction • Wittig Reaction • Wolff-Kishner Reduction

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