Synthetic Route of 114897-91-5,Some common heterocyclic compound, 114897-91-5, name is 2-(4-Bromo-2-fluorophenyl)acetonitrile, molecular formula is C8H5BrFN, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
Step 1: 2- (4-BROMO-2-CHLORO-PHENYL)-2-METHYL-PROPIONITRILE (4-BROMO-2-FLUOROPHENYL) ACETONITRILE (1 g, 4.67 mmol) described in step 1 from Example A (97), benzyltriethylammonium chloride (0.02 g, 0.09 mmol) and 1,4-Dibromobutane (1.43 g, 0.79 mmol) were dissolved 50% aqueous NAOH (3 mL) and the resulting mixture was stirred for 3 hours at 50 C. Reaction was quenched with 4N HCI (50 mL extracted with EtOAc. The organic phase was dried over NA2SO4 and evaporated. The crude organic product was purified by flash column chromatography (5% EtOAc in hexanes) to give the product (1.25 g, 100%) as a clear OIL). H NMR (CDCI3) 5 : 1. 93-2. 17 (m, 4 H), 2.50-2. 55 (m, 2 H), 3.42-3. 46 (m, 2H), 7.26-7. 34 (m, 3 H).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 2-(4-Bromo-2-fluorophenyl)acetonitrile, its application will become more common.
Reference:
Patent; PFIZER INC.; WO2004/74270; (2004); A2;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts