Preparation of 3-bromo-2-methylbenzaldehyde_Kain Industrial Additive

background and overview[1][2] 3-bromo-2-methylbenzaldehyde can be used as a pharmaceutical synthesis intermediate, which can be reduced from 3-bromo-2-methylbenzoic acid as the starting material to obtain (3-bromo-2-methylphenyl ) methanol, and then oxidized to prepare 3-bromo-2-methylbenzaldehyde. preparation[1-2] report 1: step 1: to a suspension of sodium borohydride (0.630 g, 16.7 mmol) in thf (82 ml), add 3-bromo-2-methylbenzoic…