Monoesters and diesters of N-alkyl-substituted amino methyl phosphonic acid of the formula CHEM wherein a + b = 2 and a is 0 or 1, Z, R and R1 have various values, representative compounds being the ethyl, 2-chloroethyl, 2-ethoxyethyl and pentyl esters of N[(1-cyanoethoxy)hydroxyphosphinyl]methylglycine, are made by reacting a phosphite of the formula P(OR1)3, water and a trisubstituted hexahydro1,3,5-triazine of the formula CHEM Compounds of formula I are useful as herbicides.
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机译:式的N-烷基取代的氨基甲基膦酸的单酯和二酯,其中a + b = 2且a为0或1,Z,R和R1具有各种值,代表性的化合物为乙基,2-氯乙基N [(1-氰基乙氧基)羟基膦基]甲基甘氨酸的2-乙氧基乙基和戊基酯是通过使式P(OR1)3的亚磷酸酯与水与式展开▼