Trichloroacetyl chloride → HCID 91021533, compound

Participants

Reaction Conditions

Reaction Steps

The above amide (490 mg) and triethylamine (0.37 ml) in dichloromethane (10 ml) was treated dropwise with trichloroacetyl chloride (0.16 ml) in dichloromethane (10 ml) with stirring at 0-5° C. After 0.5 h, more trichloroacetyl chloride (0.8 ml) was added and stirring continued for 0.25 h. The reaction mixture was washed with aqueous sodium bicarbonate solution, dilute hydrochloric acid, water, then brine, and dried (MgSO4). The solvent was evaporated and the residue was purified by chromatography (silica gel, dichloromethane as eluent) to give 1,1-dimethylethyl {[3-(5-chloro-2-cyanophenoxy)phenyl]methyl}carbamate (240 mg) as a colourless solid.

Provenance & Evidence