One-Pot Three-Component Highly Selective Synthesis of Homoallylboronates by Using Metal-Free Catalysis

被引:40
|
作者
Ibrahem, Ismail [1 ]
Breistein, Palle [1 ]
Cordova, Armando [1 ,2 ,3 ]
机构
[1] Mid Sweden Univ, Dept Nat Sci Engn & Math, SE-85170 Sundsvall, Sweden
[2] Stockholm Univ, Dept Organ Chem, Arrhenius Lab, S-10691 Stockholm, Sweden
[3] Stockholm Univ, Berzelii Ctr EXSELENT, S-10691 Stockholm, Sweden
关键词
aldehydes; boron; conjugate addition; multicomponent reactions; organocatalysis; ALPHA; BETA-UNSATURATED CARBONYL-COMPOUNDS; BORON CONJUGATE ADDITIONS; ASYMMETRIC BETA-BORATION; ENANTIOSELECTIVE HYDROBORATION; AMINO ALCOHOLS; BOND FORMATION; ESTERS; TERTIARY; DIBORON; SUBSTITUTION;
D O I
10.1002/chem.201103572
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Metal-free selectivity: The first metal-free one-pot three-component highly chemo- and regioselective catalytic synthesis of homoallylboranes using simple N-heterocyclic carbenes (NHC) and amines is presented. The catalytic reaction between B 2(pin) 2, α,β-unsaturated aldehydes and 2-(triphenylphosphoranylidene)acetate esters proceeds through a catalytic metal-free β-boration/Wittig cascade sequence (see scheme). © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:5175 / 5179
页数:5
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