The direct reductive amination of electron-deficient amines with aldehydes: the unique reactivity of the Re2O7 catalyst
作者:Braja Gopal Das、Prasanta Ghorai
DOI:10.1039/c2cc33185c
日期:——
An unprecedented direct reductive amination of electron-deficient amines such as Cbz-, Boc-, EtOCO-, Fmoc-, Bz-, ArSO2-, Ar2PO-, etc. protected amines with aldehydes is achieved using the Re2O7 catalyst and silanes as the hydride source. Excellent regioselective mono-alkylation and chemoselective reductive-amination were observed.
Palladium-Catalyzed Direct Arylation of Allylamines with Simple Arenes
作者:Yichao Lei、Ruiying Qiu、Lingjuan Zhang、Conghui Xu、Yixiao Pan、Xubo Qin、Huanrong Li、Lijin Xu、Yuheng Deng
DOI:10.1002/cctc.201403019
日期:2015.4.20
The Pd(OAc)2‐catalyzed direct CH bond olefination of unreactive arenes with allylamines in the presence of AgOAc was developed. A variety of allylamines including β‐substituted substrates underwent smooth coupling reactions with various arenes to give exclusively the terminal arylation products in high yields with excellent regioselectivities and stereoselectivities. The reaction is compatible with
Direct, Intermolecular, Enantioselective, Iridium-Catalyzed Allylation of Carbamates to Form Carbamate-Protected, Branched Allylic Amines
作者:Daniel J. Weix、Dean Marković、Mitsuhiro Ueda、John F. Hartwig
DOI:10.1021/ol901151u
日期:2009.7.2
The direct reaction between carbamates and achiral allylic carbonates to form branched, conveniently protected primary allylicamines with high regioselectivity and enantioselectivity is reported. This process occurs without base or with 0.5 equiv K3PO4 in the presence of a metalacyclic iridium catalyst containing a labile ethylene ligand. The reactions of aryl-, heteroaryl-, and alkyl-substituted
A general method for the reductive carbamation and sulfonamidation of aldehydes
作者:Michael D. Alexander、Robert E. Anderson、Joseph Sisko、Steven M. Weinreb
DOI:10.1021/jo00295a063
日期:1990.4
Relay Catalysis by a Metal-Complex/Brønsted Acid Binary System in a Tandem Isomerization/Carbon−Carbon Bond Forming Sequence
作者:Keiichi Sorimachi、Masahiro Terada
DOI:10.1021/ja807591m
日期:2008.11.5
one-pot tandem isomerization/carbon-carbon bond forming sequence catalyzed by a ruthenium complex/Brønstedacidbinarysystem is demonstrated. The method enables the use of readily available allylamides to deliver reactive imines under relaycatalysisusing a binary catalytic system. Subsequent Brønstedacid catalyzed carbon-carbon bond forming reactions of the generated imines with nucleophilic components