Some common heterocyclic compound, 60702-69-4, name is 2-Chloro-4-fluorobenzonitrile, molecular formula is C7H3ClFN, 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. Formula: C7H3ClFN
To a solution of 2-chloro-4-fluoro-benzonitrile (4 g, 25.71 mmol) in DMF (20 mL) were added Na2S (3.01 g, 38.57 mmol). The mixture was held at room temperature with stirring on for 20 h. Then the mixture was added 1 M HCl to adjust to pH 6-7. MTBE (20 ml) and water (20 ml) was added. The aqueous phase was extracted with MTBE (20 mL X 2), the combined organic phases were washed with sat. NaHCC”3 (50 mL) and brine (50 mL), dried over anhydrous sodium sulphate. Removal of solvent gave a yellow solid (3.7 g). The residue was used to next step directly. m/z calcd for [C7H4CINS]” [M-H]~: 168.0; found: 168.0.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 60702-69-4, its application will become more common.
Reference:
Patent; GALECTO BIOTECH AB; BRIMERT, Thomas; JOHNSSON, Richard; LEFFLER, Hakon; NILSSON, Ulf; ZETTERBERG, Fredrik; (284 pag.)WO2016/120403; (2016); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts