Trimethylsilylated N- alkyl-substituted carbamates I.preparation and some reactions
作者:Dezsö Knausz、Aranka Meszticzky、L′aszl′o Szak′acs、B′ela Cs′akv′ari、K′alm′an Ujsz′aszy
DOI:10.1016/s0022-328x(00)99291-x
日期:1983.11
ammonium carbamates with trimethylchlorosilane. Trimethylsilyl NN-dimethylcarbamate can be used for silylation of alcohols,phenols, and carboxylic acids. The silycarbamates react with carboxylic acid halides to give the corresponding acide amides. The reaction of trimethylsilyl carbamates with carboxylic anhydrides give the corresponding silyl carboxylate and acid amide, while the reaction with dicarboxylic
三甲基甲硅烷Ñ -monoalkyl-和Ñ,Ñ二烷基-氨基甲酸酯已在85-95%的收率由相应的氨基甲酸铵与三甲基氯硅烷的甲硅烷基化制备。三甲基甲硅烷基N N-二甲基氨基甲酸酯可用于醇,酚和羧酸的甲硅烷基化。甲硅烷基氨基甲酸酯与羧酸卤化物反应,得到相应的酸酰胺。氨基甲酸三甲基甲硅烷基酯与羧酸酐的反应生成相应的甲硅烷基羧酸酯和酰胺,而与二羧酸酐的反应生成相应的二羧酸的三甲基甲硅烷基单酰胺,即Me 3 SiO 2 -CCONR 1 R2。