1,2-Dichloroethane → HCID 12375834, compound

Participants

Reaction Conditions

Reaction Steps

316.4 parts of pyridine are introduced at -10° C., whilst stirring, into a solution of 400 parts of phosgene in 2,500 parts of 1,2-dichloroethane. 630.4 parts of isopropylsulfamic acid chloride are then added at the same temperature and the reaction mixture is stirred for one hour at 22° C. Thereafter, the mixture is stirred for 8 minutes with 700 parts of water at 6° C. and pH 1. The organic phase is then separated off from the 2-phase mixture formed, and is filtered and subjected to fractional distillation. 763 parts (87% of theory) of N-chlorocarbonyl-N-isopropylsulfamic acid chloride, of boiling point 57°-62° C./0.11 mbar and nD25 =1.4749, are obtained.

Provenance & Evidence