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。
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.
Accessing bridged bicyclic compounds or meta carbon-functionalized anilines from the dearomatization of anilines
作者:Linfei Wang、Shuo-En Wang、Weibin Wang、Renhua Fan
DOI:10.1039/c3ra23224g
日期:——
The oxidative dearomatization of anilines was combined with a domino Michael addition, providing a series of nitrogen-containing bridged bicyclic compounds in moderate to excellent yields. The bridged bicyclic compound could be converted into the corresponding meta carbon-functionalized aniline derivative via a quinine-catalyzed tandem retro-oxa-Michael addition–aromatization reaction.
Divergent Construction of Nitrogen-Containing Polycyclic Compounds with a Dearomatization Strategy
作者:Linfei Wang、Renhua Fan
DOI:10.1021/ol301282p
日期:2012.7.20
The oxidative dearomatization of para-substituted o-alkynylanilines afforded 2-alkynyl cyclohexadienimines, which can act as active substrates for reaction with electron-rich styrenes. The reaction is metal-controlled. Bi(OTf)3-catalyzed reactions afforded 3,4-dihydro-cyclopenta[c,d]indoles, and AgOTf-catalyzed reactions provided tricyclic pyrrole derivatives.
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.