Construction of Chiral Tricyclic Indoles through a Rhodium-Catalyzed Asymmetric Arylation Protocol
作者:Chun-Yan Wu、Yue-Na Yu、Ming-Hua Xu
DOI:10.1021/acs.orglett.6b03585
日期:2017.1.20
complex catalyzed asymmetric 1,4-addition of arylboronic acids to indole-derived α,β-unsaturatedesters to access highly enantioenriched 3-(1H-indol-2-yl)-3-arylpropanoates has been developed. By taking advantage of the nucleophilic character of indole at C3 and N1 positions, construction of a series of valuable chiral tricyclic indole frameworks such as 2,3-dihydro-1H-pyrrolo[1,2-a]indoles and cyclopenta[b]indoles
已开发出铑/二烯络合物催化的芳基硼酸与吲哚衍生的α,β-不饱和酯的不对称1,4-加成反应,以得到高度对映体富集的3-(1 H-吲哚-2-基)-3-芳基丙酸酯。通过利用吲哚在C3和N1位的亲核特性,构建一系列有价值的手性三环吲哚骨架,例如2,3-二氢-1 H-吡咯并[1,2- a ]吲哚和环戊[ b ]吲哚可以有效地实现。