Three-component reaction for the synthesis of diverse β-unsaturated α-amino esters
作者:Hélio A. Stefani、Flávia Manarin、Ariane C.S. Sousa、Frederico B. Souza、Witor Ribeiro Ferraz
DOI:10.1016/j.tet.2013.11.107
日期:2014.5
We describe an efficient multicomponent reaction for the preparation of β-unsaturatedα-aminoesters by ytterbium triflate catalyzed reaction of potassium organotrifluoroborate salts, aniline and ethyl glyoxalate. The synthetic viability of this protocol was demonstrated by moderate to high yields, short reaction time ranging from 0.5 to 12 h, and efficiency with respect to substrate scope.
METHOD FOR ASYMMETRIC ALKYNYLATION OF ALPHA-IMINO ESTERS
申请人:The Hong Kong Polytechnic University
公开号:EP1885685A2
公开(公告)日:2008-02-13
Method For Asymmetric Alkynylation Of Al Pha-Imino Esters
申请人:Chan Albert Sun-Chi
公开号:US20080183010A1
公开(公告)日:2008-07-31
Method for the preparation of asymmetric alkynylated α-amino esters of the formula
wherein R
1
and R
2
are independently optionally substituted alkyl cycloalkyl, aryl or heteroaryl, and Y is hydrogen or a nitrogen protecting group.
US7612239B2
申请人:——
公开号:US7612239B2
公开(公告)日:2009-11-03
[EN] METHOD FOR ASYMMETRIC ALKYNYLATION OF ALPHA-IMINO ESTERS<br/>[FR] PROCEDE D'ALKYLYNATION ASYMETRIQUE D'ESTERS ALPHA-IMINO
申请人:UNIV HONG KONG POLYTECHNIC
公开号:WO2006125030A2
公开(公告)日:2006-11-23
[EN] Method for the preparation of asymmetric alkynylated -amino esters of the formula (III) wherein R1 and R2 are independently optionally substituted alkyl, cycloalkyl, aryl or heteroaryl, and Y is hydrogen or a nitrogen protecting group. [FR] La présente invention a trait à un procédé pour la préparation d'amino-esters alkynylés de formule (III), dans laquelle R1 et R2 sont indépendamment alkyle, cycloalkyle, aryle ou hétéroaryle éventuellement substitué, et Y est hydrogène ou un groupe protecteur azote.