Accessing N-heteroarylated indoles and benzimidazoles from 2-alkynyl cyclohexadienimines and cyclohexadienones through metal-catalyzed tandem reactions
作者:Min Yang、Jie Tang、Renhua Fan
DOI:10.1039/c2cc36113b
日期:——
N-Indolyl or N-benzofuranyl indoles and benzimidazoles were prepared through metal-catalyzed tandem reactions between 2-alkynyl cyclohexadienimines or cyclohexadienones and 2-alkynylanilines or N1-benzylbenzene-1,2-diamine.
Dearomatization Strategy and Palladium-Catalyzed Domino Reaction: Construction of Azepino[5,4,3-<i>cd</i>]indoles from 2-Alkynylanilines
作者:Chen Zheng、Jin Jin Chen、Renhua Fan
DOI:10.1021/ol403557q
日期:2014.2.7
A facile approach to construct 3,4-fused tricyclic azepino[5,4,3-cd]indoles from 2-alkynyl anilines, isocyanides, and α,β-unsaturated acids is reported. This synthetic process involves a regioselective meta-functionalization of 2-alkynylanilines using a dearomatization strategy and a palladium(II)-catalyzed domino heterocyclization/Heck reaction.
报道了一种由2-炔基苯胺,异氰酸酯和α,β-不饱和酸构建3,4-稠合三环叠氮基[5,4,3- cd ]吲哚的简便方法。该合成过程涉及使用脱芳香化策略和钯(II)催化的多米诺杂环/ Heck反应对2-炔基苯胺进行区域选择性的亚功能化。
Stereoselective Synthesis of Acyclic Tetrasubstituted Alkenes from Anilines by Dearomatization and Trimethylenemethane Cycloaddition
作者:Lei Li、Qiuqin He、Renhua Fan
DOI:10.1021/acs.orglett.1c03974
日期:2022.1.14
A method for stereoselective construction of acyclic all-carbon tetrasubstituted alkenes through insertion of nitrile-substituted trimethylenemethane into the aryl C–N bond in anilines via an aromaticity destruction-reconstruction process is reported. The process involves dearomatization, azo-[3 + 2] TMM cycloaddition and aromatization-triggered rearrangement.
One-pot synthesis of 4-(imidazol-1-yl)indole derivatives through a sequential dearomatization and Ag-catalyzed cyclization/Cs<sub>2</sub>CO<sub>3</sub>-mediated addition/aromatization reaction
A convenient one-pot assembly of 4-(imidazol-1-yl)indolederivatives from easily accessible o-alkynylanilines and imidazoles has been developed. The sequential dearomatization and Ag(I)-catalyzed cyclization/Cs2CO3-mediated conjugate addition/aromatization cascade reactions exhibit high efficiency and excellent selectivity. The combined use of a silver(I) salt and cesium carbonate is significant for
已经开发了一种方便的 4-(imidazol-1-yl) 吲哚衍生物的一锅法组装,来自易于获得的邻炔基苯胺和咪唑。顺序脱芳构化和 Ag( I ) 催化的环化/Cs 2 CO 3介导的共轭加成/芳构化级联反应表现出高效率和出色的选择性。银 ( I ) 盐和碳酸铯的组合使用对于促进这种多米诺骨牌转换具有重要意义。4-(imidazol-1-yl)indole产物很容易转化为相应的衍生物,在生物化学和医药科学方面具有重要价值。