Process for the preparation of aliphatic or cycloaliphatic chlor

Details Process for the preparation of aliphatic or cycloaliphatic chlor Process for the preparation of aliphatic or cycloaliphatic chlor

1998-06-18

1999-06-08

Siegel, Alen

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

Organic compounds

Halogen containing

570198, 570258, 568610, 568614, 568655, 568681, 558425, 558460, C07C 1716, C07C 2200, C07C 4318, C07C25500

Patent

active

059106174

ABSTRACT:
The process according to the invention consists in preparing chlorides of aliphatic or cycloaliphatic hydrocarbons by reacting the corresponding mono- or polyalcohol with phosgene or thionyl chloride in the presence of at least one catalyst chosen from hexasubstituted guanidinium halides and their hydrohalides, optionally grafted via one of their radicals to a silica-based support.
The chlorides are quickly obtained with good yields and contain few by-products such as carbonates or chloroformates.

REFERENCES:
patent: 2926204 (1960-02-01), Wolfe
patent: 4734535 (1988-03-01), Greif et al.
patent: 4806286 (1989-02-01), Senet et al.
patent: 5196611 (1993-03-01), Henkelmann et al.
patent: 5348923 (1994-09-01), Gauthier et al.

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