Synthesis of Trimethylsilyl p-(2,2-Dimethylhydrazino)propionate

摘要

Aliphatic esters of p-(2,2-dimethylhydrazino)propionic acid were synthesized by reaction of 1,1-dimethylhydra-zine with the corresponding alkyl acrylates[1,2].Methyl acrylate is known to react with 1,1 -dimethylhydrazine in polar solvents(water,alcohol),affording a cyclic adduct,1,1 -dimethyldihydro-pyrazol-1 -ium-3-olate[1].In the reaction of an organosilicon acrylate,l,3-bis(acrylo-yloxymethyl)-1,1,3,3-tetramethyldisiloxane with 1,1 -dimethylhydrazine,product of addition at the double bond is formed in a poor yield(26.6%)[3].