Triethylamine → Ethyl 2-[4-chloro-2-(trifluoromethyl)anilino]-2-oxoacetate

Participants

Reaction Steps

A mixture of 2-amino-5-chlorobenzotrifluoride (14.4 ml, 0.1 mol) and triethylamine (14.0 ml, 0.1 mol) was dissolved in dry tetrahydrofuran, THF (250 ml). To this solution was added with stirring a solution of ethoxalyl chloride in THF (50 ml). After completion of the addition (30 min.) the mixture was stirred at ambient temperature for 3 h, whereafter the precipitated triethylammonium chloride was filtered off, and the filtrate was evaporated in vacuo. This left the crude title compound (24 g) as pale crystals. M.p. 55°-58° C.

Provenance & Evidence