Optically active n-benzyl-haloacetamide derivative, its preparation, and herbicide containing said derivative as effective component
专利汇可以提供Optically active n-benzyl-haloacetamide derivative, its preparation, and herbicide containing said derivative as effective component专利检索，专利查询，专利分析的服务。并且NEW MATERIAL:The titled derivative of formula I (X is halogen; R is H ormethyl; the mark * denotes asymmetric carbon).
EXAMPLE: d-N-(α,α-Dimethylbenzyl)-α-bromo-t-butylacetamide.
USE: Herbicide effective against weeds in a plowed field, annual weeds in a paddy rice field, and perennial weeds such as flatstage. It is harmless to important crops such as rice plant, soybean, cotton, etc., and vegetables such as lettuce.
PROCESS: For example, an α-halo-t-butylacetic acid is optically resolved with optically active α-methylbenzylamine or optically active 1-phenyl-2-(p-tolyl)-ethylamine. The resulting optically active α-halo-t-butylacetic acid of formula II or its reactive derivative is made to react with α,α-dimethylbenzylamine or α,α,p-trimethylbenzylamin to obtain the objective compound.
COPYRIGHT: (C)1981,JPO&Japio，下面是Optically active n-benzyl-haloacetamide derivative, its preparation, and herbicide containing said derivative as effective component专利的具体信息内容。
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