Pd/Cu-catalyzed couplings of β-amino esters with aryl bromides. Synthesis of chiral 1,2,3,4-tetrahydro-4-oxo-2-alkyl-1-quinolines
摘要:
A new protocol to prepare chiral 1,2,3,4-tetrahydro-4-oxo-2-alkyl-1-quinolines has been developed. The key steps are Pd/Cu-catalyzed couplings of chiral beta-amino esters and aryl bromides, and intramolecular acylation. (C) 1998 Elsevier Science Ltd. All rights reserved.
One-Pot Preparation of Chiral .BETA.-Amino Esters by Rhodium-Catalyzed Three-Components Coupling Reaction.
作者:Toshio Honda、Hitoshi Wakabayashi、Kazuo Kanai
DOI:10.1248/cpb.50.307
日期:——
Chiral beta-amino esters are synthesized in one-pot from three components, amines, aldehydes, and ethyl bromoacetate, under the rhodium-catalyzed Reformatsky-type reaction condition, where complete diastereoselection is achieved in the nucleophilic addition step of ethyl bromoacetate to the imines prepared in
Pd/Cu-catalyzed couplings of β-amino esters with aryl bromides. Synthesis of chiral 1,2,3,4-tetrahydro-4-oxo-2-alkyl-1-quinolines
作者:Dawei Ma、Jiqing Jiang
DOI:10.1016/s0957-4166(98)00078-0
日期:1998.4
A new protocol to prepare chiral 1,2,3,4-tetrahydro-4-oxo-2-alkyl-1-quinolines has been developed. The key steps are Pd/Cu-catalyzed couplings of chiral beta-amino esters and aryl bromides, and intramolecular acylation. (C) 1998 Elsevier Science Ltd. All rights reserved.