A convenient method for the synthesis of N-(2,2-dichlorovinyl)amides has be
en established. Treatment of chloralamides with phosphorus pentachloride pr
ovides N-(1,2,2,2-tetrachloroethyl)amides in high yields whose electrochemi
cal reduction leads to the title compounds in fair to quantitative yields.
This approach exhibits superior efficiency and versatility than previously
reported procedures. (C) 2001 Elsevier Science Ltd. Ail rights reserved.