作者:Hisanaka Ito、Mineki Hasegawa、Yosuke Takenaka、Tatsuya Kobayashi、Kazuo Iguchi
DOI:10.1021/ja049750p
日期:2004.4.1
(+)-tricycloclavulone having a unique tricyclo[5,3,0,01,4]decane skeleton and six chiral centers was achieved in a highly stereoselective manner. It includes a catalytic enantioselective [2+2]-cycloaddition reaction using novel chiral copper catalyst, extremely effecting an intramolecular ester transfer reaction, and asymmetric reduction of the carbonyl group on the alpha-chain using Noyori's chiral ruthenium catalyst
以高度立体选择性的方式实现了具有独特三环[5,3,0,01,4]癸烷骨架和六个手性中心的(+)-三环克拉维酮的首次全合成。它包括使用新型手性铜催化剂的催化对映选择性 [2+2]-环加成反应,极大地影响分子内酯转移反应,以及使用 Noyori 的手性钌催化剂不对称还原 α 链上的羰基。