| 摘要 |
The compounds are trialkylsubstituted hydroxybenzylphosphonates and phosphinates having the formula <IMAGE> I or <IMAGE> Ia or <IMAGE> Ib WHEREIN R, R1 and R2 are independently lower alkyl or cycloalkyl groups, R3 is alkyl, alkyl substituted with one halogen atom, phenyl, phenyl substituted with alkyl groups, alkoxy, alkoxy substituted with one halogen group, phenoxy, phenoxy substituted with alkyl groups, alkylthioethoxy, alkylpolyoxyalkylenoxy, R4 is alkyl, alkylsubstituted with one halogen atom, cycloalkyl, phenyl, phenyl substituted with alkyl groups alkylthioethyl, thiobis-alkylene, alkyleneoxyalkylene, polyoxyalkylene, alkylpolyoxyalkylene, alkylene, polyvalent cyclic or acyclic hydrocarbon radical, R5 and R6 are independently hydrogen, alkyl of 1 to 12 carbon atoms, R6 may also be the group Ic <IMAGE> Ic OR TOGETHER R5 and R6 represent the group Id <IMAGE> Id R7 is hydrogen, alkyl or phenyl, A is lower alkylene and n is 1 to 4.
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