Enantioselective Construction of Quaternary Stereogenic Centers from Tertiary Boronic Esters: Methodology and Applications
作者:Ravindra P. Sonawane、Vishal Jheengut、Constantinos Rabalakos、Robin Larouche-Gauthier、Helen K. Scott、Varinder K. Aggarwal
DOI:10.1002/anie.201008067
日期:2011.4.11
that bear versatile functional groups with quaternary stereogenic centers have been prepared with very high enantioselectivity from tertiary boronic esters (see scheme; Cb=N,N‐diisopropylcarbamoyl, pin=pinacolato). The preparation of allylboronic esters bearing contiguous quaternary and tertiary stereogenic centers, and applications to natural product synthesis are also reported.
固定下来:一系列具有四元立体中心的多功能官能团的底物已经由叔硼酸酯制备,具有非常高的对映选择性(参见方案;Cb = N,N-二异丙基氨基甲酰基,pin = pinacolato)。还报道了具有连续季和叔立体中心的烯丙基硼酸酯的制备,以及在天然产物合成中的应用。