Process for the production of cyclopropylmethyl halides

Details Process for the production of cyclopropylmethyl halides Process for the production of cyclopropylmethyl halides

1998-08-28

2000-06-20

Richter, Johann

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

Organic compounds

Halogen containing

570258, C07C 1716

Patent

active

060779810

ABSTRACT:
Disclosed is a process for the production of cyclopropylmethyl halides (CPMX) such as cyclopropylmethyl chloride (CPMCl) and cyclopropylmethyl bromide (CPMBr) wherein cyclopropanemethanol (CPMO) is contacted with an aqueous solution of a hydrogen halide (HX) at a temperature in the range of -30.degree. C. to 35.degree. C. Also disclosed is a three-step process wherein CPMO is converted to a CPMX, the CPMX is separated as a liquid organic phase from the aqueous hydrogen halide by decantation and then is subjected to fractional distillation to provide CPMX in high purity. Finally, a process for the co-production of a CPMX and a cyclobutyl halide (CBX) is disclosed.

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