Photoinduced debenzylations of phenylalanine and tyrosine derivatives with dicyanoarenes afford glycine derivatives by the generation of radical cations. Despite the limited substrate scope, the radical cation of phenylalanine and tyrosine derivativesbearing both a carbamate (without an aromaticgroup) at the N-terminal and an amide at the C-terminal could promote the breaking C–C bond at the benzylic
Propargyl amide precursor to 1-propargyl-2,4-dioxoimidazolidine
申请人:Sumitomo Chemical Company, Limited
公开号:US04827020A1
公开(公告)日:1989-05-02
1-propargyl-2,4-dioxoimidazolidine is a very useful intermediate for synthesizing insecticidal and acaricidal compounds of pyrethroid type. Here are disclosed a method for producing 1-propargyl-2,4-dioxoimidazolidine, the starting material compounds thereof and a method for producing said starting material compounds. According to the present invention, said useful intermediate can be easily produced than before.