反应详情

A stirred suspension of 1-(4-nitro-phenyl)-cyclopentanecarboxylic acid (8.85 g) in dry dichloromethane (100 mL) was treated with oxalyl chloride (5.0 mL) and catalytic amount dry dimethylformamide (5 drops). The mixture was stirred at room temperature, under anhydrous conditions, for 16 hours then evaporated to give the title compound as an off white solid (100%), which was used without further purification.

1. customthen evaporated