Process for the synthesis of .alpha.-chloromethyl chloroformate

Details Process for the synthesis of .alpha.-chloromethyl chloroformate Process for the synthesis of .alpha.-chloromethyl chloroformate

C - Chemistry, Metallurgy

07

C

260/467

C07C 69/96 (2006.01) B01J 31/02 (2006.01)

Patent

CA 1190938

Process for the Synthesis of ?-Chloromethyl Chloroformate Abstract of the Disclosure A process for the preparation of chloromethyl chloro- formate is described which consists of introducing dry gaseous formaldehyde in monomeric form into a reactor containing phos- gene and a catalyst, which is a substituted amide, tetrasub- stituted urea, thiourea, a nitrogen completely substituted phosphoramide, a quaternary ammonium halide, the substituents of which include a total of at least 16 carbon atoms, an alkali or alkaline earth halide associated with a sequestering agent of its cation or the reaction product of this catalysts with phos- gene, in the total absence of water and hydrochloric acid. The temperature is between -10°C and +60°C.

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