Hydride Transfer Involved Redox-Neutral Cascade Cyclizations for Construction of Spirocyclic Bisoxindoles Featuring a [3,4]-Fused Oxindole Moiety
作者:Shuai-Shuai Li、Shuai Zhu、Chunqi Chen、Kang Duan、Qing Liu、Jian Xiao
DOI:10.1021/acs.orglett.8b04100
日期:2019.2.15
The hydride transfer involved redox-neutral cascade cyclization has been developed to construct the spirocyclic bisoxindoles featuring a [3,4]-fused oxindole moiety from rationally designed C4-amine-substituted isatins, affording the diverse tricyclic [3,4]-fused oxindoles with three consecutive chiral centers in good yields and excellent diastereoselectivities (>20:1).
已经开发出涉及氧化还原-中性级联环化的氢化物转移,以从合理设计的C4-胺取代的靛红中构建具有[3,4]-稠合的羟吲哚部分的螺环双恶吲哚,从而提供各种三环[3,4]-稠合的羟吲哚具有三个连续的手性中心,具有良好的收率和出色的非对映选择性(> 20:1)。