PROCESS FOR THE PRODUCTION OF 4-CHLOROACETOACETYL CHLORIDE, 4-CHLOROACETOACETIC ACID ESTERS, AMIDES AND IMIDES

摘要

The invention relates to process for the continuous production of 4- chloroacetoacetyl chloride, comprising the steps of (a) feeding diketene and chlorine into a thin film reactor and (b) reacting the diketene and chlorine to obtain 4-chloroacetoacetyl chloride. The invention also relates to a process for the production of 4- chloroacetoaceticacid ester, 4-chloroacetoaceticacid amide or 4- chloroacetoaceticacid imide from 4-chloroacetoacetyl chloride obtained according to the inventive process.