Cp*Co(III)-Catalyzed Regioselective Synthesis of Cyclopenta[<i>b</i>]carbazoles via Dual C(sp<sup>2</sup>)–H Functionalization of 1-(Pyridin-2-yl)-indoles with Diynes
作者:Qiuyun Li、Yanwei Wang、Bin Li、Baiquan Wang
DOI:10.1021/acs.orglett.8b03438
日期:2018.12.21
Cp*Co(III)-catalyzedsynthesis of cyclopenta[b]carbazoles from 1-(pyridin-2-yl)-indoles and diynes is developed. This reaction involves dual C–H activation of indoles and domino cyclizations with diynes and has excellent regioselectivity, high efficiency, a broad substrate scope, and tolerance for various functional groups. A series of cyclopenta[b]carbazole molecular scaffolds are obtained in good
开发了Cp * Co(III)催化的1-(吡啶-2-基)-吲哚和二炔合成环戊[ b ]咔唑的方法。该反应涉及吲哚的双重C–H活化和带有二炔的多米诺环化反应,具有出色的区域选择性,高效率,广泛的底物范围以及对各种官能团的耐受性。以良好或优异的产率获得了一系列环戊[ b ]咔唑分子支架。
Fused Phenanthridines: Domino Cyclization of 1,6-Diynes with Bromo(iso)quinoline
An offer you can′t re‐fused: The first examples of a convenient domino synthesis of 7,11‐diphenyl‐9,10‐dihydro‐8H‐cyclopentaphenanthridine derivatives, such as 3, by the domino palladium‐catalyzed cyclization reactions of simple 1,6‐diynes with bromo(iso)quinoline in a single operation are described.
Rhodium(I)‐Catalyzed Asymmetric Hydroarylative Cyclization of 1,6‐Diynes to Access Atropisomerically Labile Chiral Dienes
作者:Panjie Hu、Lingfei Hu、Xiao‐Xi Li、Mengxiao Pan、Gang Lu、Xingwei Li
DOI:10.1002/anie.202312923
日期:2024.1.2
Rhodium(I)-catalyzed hydroarylative cyclization of 1,6-diynes with three distinct classes of arenes has been realized, enabling highly enantioselective synthesis of a broad range of axially chiral 1,3-dienes that are conformationally labile. Detailed mechanistic studies have been explored by experimental and computational methods.