Palladium-Catalyzed Allylic Amination of Homoallylic Alcohols with Amines via Carbon–Carbon Bond Cleavage
作者:Qiang Kang、Gui-Jun Sun、Yong Wang
DOI:10.1055/s-0034-1380418
日期:——
Abstract An efficient approach for palladium(II) acetate catalyzed allylic amination of homoallylic alcohols with various amines via sequential retro-allylation and amination was developed, which afforded the corresponding allylic amines in up to 98% yield. An efficient approach for palladium(II) acetate catalyzed allylic amination of homoallylic alcohols with various amines via sequential retro-allylation
are readily prepared from the direct reaction between amides and diaryliodonium salts. As demonstrated for 24 different examples, the reaction is of unusually broad scope with respect to the sterically congested arene and the nitrogen source, occurs without the requirement for any additional promoter, and proceeds through a direct reductive elimination at the iodine(III) center. The efficiency of the
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.
Selective C3C3 Oxidative Cross-Coupling between Unactivated Anilines and Indoles
作者:Linfei Wang、Zhaomeng Han、Renhua Fan
DOI:10.1002/adsc.201000603
日期:2010.12.17
A selective C3C3 oxidativecross-couplingbetweenunactivatedanilines and indoles catalyzed by copper bromide together with iodobenzene diacetate as the oxidant is described. This methodology provides a novel approach to biaryl synthesis.
[3+2]-Annulation of platinum-bound azomethine ylides with distal CC bonds of N-allenamides
作者:Indradweep Chakrabarty、Suleman M. Inamdar、Manjur O. Akram、Amol B. Gade、Subhrashis Banerjee、Saibal Bera、Nitin T. Patil
DOI:10.1039/c6cc07874e
日期:——
A Pt-catalyzed, highly regioselective, reaction between N-allenamides and imino-alkynes leading to pyrrolo[1,2-a]indoles is described. This represents the firstexample of [3+2]-annulation of Pt-bound azomethine ylides with the distal C=C bond...