121st General Meeting of the KCS

Type Poster Presentation
Area Organic Chemistry
Room No. Event Hall
Time 4월 19일 (목요일) 11:00~12:30
Code ORGN.P-366
Subject Catalytic 1,2-Addition of gem-Diborylalkanes to Acylic Aldimines: An Improved Enantio- and Diastereoselectivity
Authors Jeongho Kim, Seung Hwan Cho*
Department of Chemistry, Pohang University of Science and Technology, Korea
Abstract Reported herein is an improved procedure for the diastereo- and enantioselective copper-catalyzed 1,2-addition of gem-diborylalkanes to N-protected acyclic aldimines to afford enantioenriched beta-aminoboronate esters. The reaction indicate that the diastereoselectivity is quite sensitive to the protection group and the installation of N,N-dimethyl sulfamoyl group to imine give the desired beta-aminoboronate esters with good to excellent diastereo- and enantioselectivity
E-mail bjkame@naver.com