Enantio- and Diastereoselective Construction of Contiguous Tetrasubstituted Chiral Carbons in Organocatalytic Oxadecalin Synthesis
作者:Yuuki Wada、Ryuichi Murata、Yuki Fujii、Keisuke Asano、Seijiro Matsubara
DOI:10.1021/acs.orglett.0c01501
日期:2020.6.19
The organocatalytic enantio- and diastereoselective cycloetherification of 1,3-cyclohexanedione-bearing enones involving the in situ generation of chiral cyanohydrins was developed. This transformation offers the first catalytic asymmetric approach to oxadecalin derivatives containing contiguous tetrasubstituted chiral carbons at the bridge heads of the fused ring systems. Depending on substituents
已开发了涉及1,3-环己二酮的烯酮的有机催化对映和非对映选择性环醚化反应,涉及手性氰醇的原位生成。这种转变为在稠环系统桥头处含有连续四取代手性碳的奥沙德林衍生物提供了第一种催化不对称方法。根据取代基的不同,合成的顺式和反式十氢化萘型支架均具有良好的立体选择性,以及在反式-oxadecalin衍生物的手性季碳部分上积累的一系列官能团。