Monoesters and diesters of N-alkyl-substituted amino methyl phosphonic acid of the formula
wherein a + b = 2 and a is 0 or 1, Z, R and R, have various values, representative compounds being the ethyl, 2-chloroethyl, 2-ethoxyethyl and pentyl esters of N[(1-cyanoethoxy)hydroxy- phosphinyl]methylglycine, are made by reacting a phosphite of the formula P(OR1)3, water and a trisubstituted hexahydro-1,3,5-triazine of the formula
Compounds of formula are useful as herbicides.
式中 N-烷基取代
氨基
甲基膦酸的单酯和二酯
其中 a + b = 2,a 为 0 或 1,Z、R 和 R 具有不同的值,代表化合物为 N[(1-
氰乙氧基)羟基-膦酰基]甲基甘
氨酸的乙基酯、2-
氯乙基酯、
2-乙氧基乙基酯和戊基酯,由式 P(OR1)3、
水和式三取代六氢-
1,3,5-三嗪反应制得。
式化合物可用作
除草剂。