Phosphorous acid derivatives as intermediates in the preparation of hals derivatives
申请人:Clariant Finance (BVI) Limited
公开号:EP0822198A1
公开(公告)日:1998-02-04
A compound of formula (I) to (III)
in which the symbols R to R6 are organic radicals. These compounds can be used as intermediates in the production of a phosphite-HALS product.
Phosphorous acid derivatives as intermediates in the preparation of Hals derivatives
申请人:Clariant Finance (BVI) Limited
公开号:EP0822198B1
公开(公告)日:2002-11-06
JPH1087679A
申请人:——
公开号:JPH1087679A
公开(公告)日:1998-04-07
US5986098A
申请人:——
公开号:US5986098A
公开(公告)日:1999-11-16
SYNTHESIS OF NEW ORGANIC PHOSPHITES CONTAINING STERICALLY HINDERED PIPERIDINE GROUPS
作者:I. Bauer、W. D. Habicher
DOI:10.1080/10426509708031565
日期:1997.9
Abstract The synthesis of several phosphites with sterically hindered piperidine groups which are potential stabilizers for synthetic polymers is described. The reaction of phosphorous acid hexaethyltriamide (1) with the 4-hydroxypiperidine compounds 2 and 3 in a 1:1 and 1:2 ratio gives the phosphorous acid monoester diamides 4 and 5 and phosphorous acid diester monoamides 6 and 7, respectively. These