反应详情

温度

0 °C

A round bottom flask was charged with 3-chloro-4-[(1-methylethyl)oxy]benzoic acid (available from Paragos Product List, 10.2 g, 47.5 mmol), dichloromethane (158 ml) and oxalyl chloride (8.29 ml, 95 mmol). The reaction mixture was cooled to 0° C. in an ice/water bath prior to the addition of N,N-dimethylformamide (0.158 ml). The solution was allowed to warm to ambient temperature overnight. The solvent was evaporated to yield the title compound as a cream solid (11.4 g). δH (CDCl3, 400 MHz): 1.44 (6H, d), 4.73 (1H, septet), 6.98 (1H, d), 8.0 (1H, dd), 7.98 (1H, d).

1. temperatureto warm to ambient temperature overnight
2. customThe solvent was evaporated