Process for the preparation 6-chloro-2,4,8,10-tetra-butyldibenzo

Details Process for the preparation 6-chloro-2,4,8,10-tetra-butyldibenzo Process for the preparation 6-chloro-2,4,8,10-tetra-butyldibenzo

1994-03-01

1995-02-21

Hoke, Veronica P.

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

Organic compounds

Phosphorus esters

558 73, C07F 96574

Patent

active

053917995

ABSTRACT:
6-Chloro-2,4,8,10-tetrabutyl-dibenzo[d,f][1,3,2]dioxaphosphepin and related phosphorochlorites are prepared by reaction of an appropriate bisphenol with phosphorus trichloride in the presence of a catalytic amount of 1-methyl-2-pyrrolidinone in toluene followed by heating the solution and stripping off the hydrogen chloride formed by a flow of nitrogen.

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Pastor, et al. Helvetica Chimica Acta-vol. 76, 900-914 (1993).

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