ORTHO-ALKYLATED PHENYLPHOSPHONITES, PROCESS FOR THEIR PREPARATION AND STABILIZED COMPOSITIONS

摘要

1. A compound of the formula I see diagramm : EP0005447,P10,F4 wherein R1 is C1 -C18 -alkyl, phenyl, or phenyl substituted by 1 to 3 C1 -C8 -alkyl groups, R2 is C4 -C18 -tert.-alkyl, benzyl, alpha-methylbenzyl or alpha,alpha-dimethylbenzyl, and R3 is hydrogen, C1 -C18 -alkyl, benzyl, alpha-methylbenzyl or alpha,alpha-dimethylbenzyl.