Asymmetric Synthesis of Protected 1,2-Amino Alcohols Using <i>tert</i>-Butanesulfinyl Aldimines and Ketimines
作者:Tony P. Tang、Steven K. Volkman、Jonathan A. Ellman
DOI:10.1021/jo0156868
日期:2001.12.1
tert-Butanesulfinyl aldimines and ketimines bearing an alpha-benzyloxy or alpha-silyloxy substituent serve as precursors in the synthesis of protected 1,2-amino alcohols in high yields and diastereoselectivities. General protocols are described for the addition of unbranched alkyl, branched alkyl, and aryl organometallic reagents to N-sulfinyl aldimines 1 and 2 and ketimines 5 and 6. Furthermore, the
带有α-苄氧基或α-甲硅烷氧基取代基的叔丁烷亚磺酰基醛亚胺和酮亚胺以高收率和非对映选择性用作合成被保护的1,2-氨基醇的前体。描述了将非支链烷基,支链烷基和芳基有机金属试剂添加到N-亚磺酰基醛亚胺1和2以及酮亚胺5和6中的一般规程。此外,亚氨基酰胺产物3、4、7的选择性N-或O-脱保护描述了图8和8,使得能够进一步合成反应产物。