A PROCESS FOR PREPARATION OF 3,4-DIMETHYLBENZALDEHYDE

摘要

A novel process for preparation of 3,4-dimethylbenzaldehyde has been disclosed. The process is comprising steps of (i) reacting 4- bromo-o-xylene with magnesium metal to obtain Grignard compound of formula 1; (ii) formylating the compound of formula 1 by reaction with N,N-dimethylformamide to form compound of formula 2; (iii) treating compound of formula 2 with aqueous HC1 to obtain 3,4- dimethylbenzaldehyde.