Synthesis of Substituted 3-Indolylimines and Indole-3-carboxaldehydes by Rhodium(II)-Catalyzed Annulation
作者:Basker Rajagopal、Chih-Hung Chou、Ching-Cheng Chung、Po-Chiao Lin
DOI:10.1021/ol501618z
日期:2014.7.18
3-indolylimines from N-propargylanilines through Rh(II)-catalyzed denitrogenative annulation of N-sulfonyl-1,2,3-triazoles. Further combined with hydrolysis or reduction, a one-pot method is developed to enable the direct incorporation of an imine, aldehyde, or amine group into an indole system from an alkyne. A variety of substituted 3-indolylimines, indole-3-carboxaldehydes, and 3-Indolylmethanamines are
提出了一种有效的Cu / Rh催化方法,该方法通过Rh(II)催化的N-磺酰基-1,2,3-三唑的脱氮环化反应,由N-炔丙基苯胺合成3-吲哚基亚胺。进一步与水解或还原相结合,开发了一种一锅法,可将亚胺,醛或胺基团直接从炔烃引入吲哚体系。以高收率合成了多种取代的3-吲哚基亚胺,吲哚-3-羧醛和3-吲哚基甲胺。