Method for purifying chloromethyl chloroformate

Details Method for purifying chloromethyl chloroformate Method for purifying chloromethyl chloroformate

2005-06-28

2005-06-28

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic halides

C562S864000, C562S856000

Reexamination Certificate

active

06911558

ABSTRACT:
Describes a method for obtaining substantially pure chloromethyl chloroformate from a chloroformate mixture comprising chloromethyl chloroformate and methyl chloroformate by heating the chloroformate mixture in a reaction zone at temperatures ranging from at least 50° C. to the reflux temperature of the chloroformate mixture in the reaction zone while simultaneously removing volatile gaseous decomposition products from the reaction zone. Dichloromethyl chloroformate may also be present in the chloroformate mixture.

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