反应详情

To a mixture of 21-3 (0.307 g, 1.1 mmol) and DMF (1 drop) in methylene chloride (3 ml) under nitrogen cooled in an ice-bath was added dropwise a solution of oxalyl chloride (0.113 ml, 1.3 mmol) in methylene chloride (1 ml). The resulting solution was stirred 1 h with ice-bath cooling, 1 h at ambient temperature, then was evaporated at reduced pressure to give crude 4-(cyclohexylmethyloxy)-3-nitrobenzoyl chloride as an oil.

1. temperaturecooled in an ice-bath
2. customwas evaporated at reduced pressure