A Convenient and Versatile Method for the Preparation of α-Hydroxymethyl Ketone Derivatives from the Corresponding Allyl Silyl Ethers or Allyl Carboxylates
作者:Yung-Son Hon、Ying-Chieh Wong、Kuo-Jui Wu
DOI:10.1002/jccs.200800134
日期:2008.8
The ozonolysis of 1-substituted allyl silyl ethers or 1-substituted allyl carboxylates followed by treatment with bases gave the corresponding α-silyloxymethyl- or a-acyloxymethyl-ketones in good yields. It is proposed to proceed via the corresponding α-silyloxy- or α-acyloxyaldehydes intermediates followed by 1,4-group migration. The results of theoretical calculations are applicable to explain the
1-取代的烯丙基甲硅烷基醚或1-取代的烯丙基羧酸盐随后用碱处理得到相应的α-甲硅烷氧基甲基-或α-酰氧基甲基-酮,产率良好。建议通过相应的 α-甲硅烷氧基或 α-酰氧基醛中间体进行,然后进行 1,4-基团迁移。理论计算结果适用于解释实验结果。