申请人:Ciba-Geigy Corporation
公开号:US03962376A1
公开(公告)日:1976-06-08
The compounds are trialkylsubstituted hydroxyphenylalkanephosphinates and phosphonates having the formula ##SPC1## Wherein R, R.sup.1 and R.sup.2 are independently lower alkyl or cycloalkyl groups, R.sup.3 is alkyl, alkyl substituted with one halogen atom, phenyl, phenyl substituted with alkyl groups, alkoxy, alkoxy substituted with one halogen groups, phenoxy, phenoxy substituted with alkyl groups, alkylthioethoxy, alkyloxalkylenoxy, R.sup.4 is alkyl, alkyll substituted with one halogen atom, cycloalkyl, phenyl, phenyl substituted with alkyl groups, alkylthioethyl, thiobisalkylene, alkylene, polyvalent cyclic or acyclic hydrocarbon radical, A is lower alkylene and n is 1 to 4. These compounds are usually prepared by reacting the trialkylsubstituted hydroxybenzyl or hydroxyphenylalkyl halide with the appropriate trialkyl or triaryl phosphite or appropriate substituted phosphinite. The compounds are useful as stabilizers of organic materials subject to oxidative, thermal and UV light deterioration.
这些化合物是三烷基取代的羟基苯基烷基膦酸酯和膦酸酯,其化学式为##SPC1##其中R、R.sup.1和R.sup.2分别是独立的较低烷基或环烷基基团,R.sup.3是烷基、烷基上取代一个卤素原子、苯基、苯基上取代烷基基团、烷氧基、烷氧基上取代一个卤素基团、苯氧基、苯氧基上取代烷基基团、烷硫醚氧基、烷氧基烷氧基、R.sup.4是烷基、烷基上取代一个卤素原子、环烷基、苯基、苯基上取代烷基基团、烷硫乙基、硫代双亚烷基、亚烷基、多价环烷基或非环烷基烃基,A是较低烷基,n为1至4。这些化合物通常是通过将三烷基取代的羟基苯基或羟基苯基烷基卤化物与适当的三烷基或三芳基膦酸酯或适当取代的膦酸酯反应制备的。这些化合物可用作有机材料的稳定剂,可抵抗氧化、热降解和紫外光降解。