Dimethylformamide → HCID 54433057, compound

Participants

Reaction Steps

A solution of triethylammonium 2-triphenylmethoxyimino-2-(thien-2-yl)-acetate (syn isomer) (2.30 g, 4.46 mmole) in dry methylene chloride (50 ml) was cooled to 0° to +5° and stirred whilst oxalyl chloride (0.38 ml, 4.46 mmole) was added. N,N-Dimethylformamide (ca 0.1 ml) was added and the mixture was stirred at 0° to +5° for 21/2 hours. The solvent was evaporated and the residue was stirred with ether (100 ml) for 1 hour, and the suspension then filtered. The filtrate and ether washings (100 ml) were evaporated to give the title compound as a white crystalline solid (1.985 g, quantitative). This acid chloride was used without further purification.

Provenance & Evidence