Enantioselective Alkyl−Alkyl Suzuki Cross-Couplings of Unactivated Homobenzylic Halides
作者:Bunnai Saito、Gregory C. Fu
DOI:10.1021/ja8013677
日期:2008.5.1
effective method for asymmetric cross-couplings of unactivatedalkyl electrophiles has been developed, specifically, a nickel-based catalyst for stereoconvergent Suzuki reactions of homobenzylic bromides with alkylboranes. To the best of our knowledge, there are no previous examples of enantioselective Suzuki couplings of alkyl electrophiles (activated or unactivated). Both of the catalyst components
Organic Bismuth Compound, Method for Producing Same, Living Radical Polymerization Initiator, Method for Producing Polymer Using Same, and Polymer
申请人:Yamago Shigeru
公开号:US20070265404A1
公开(公告)日:2007-11-15
An organobismuth compound represented by the formula (1)
wherein R
1
and R
2
are C
1
-C
8
alkyl, aryl, substituted aryl or an aromatic heterocyclic group, R
3
and R
4
are each a hydrogen atom or C
1
-C
8
alkyl, and R
5
is aryl, substituted aryl, an aromatic heterocyclic group, acyl, amido, oxycarbonyl or cyano.
ORGANIC BISMUTH COMPOUND, METHOD FOR PRODUCING SAME, LIVING RADICAL POLYMERIZATION INITIATOR, METHOD FOR PRODUCING POLYMER USING SAME, AND POLYMER
申请人:Otsuka Chemical Co., Ltd.
公开号:EP1829883B1
公开(公告)日:2011-08-17
US7847043B2
申请人:——
公开号:US7847043B2
公开(公告)日:2010-12-07
Alkylboronic Esters from Palladium- and Nickel-Catalyzed Borylation of Primary and Secondary Alkyl Bromides
作者:Jun Yi、Jin-Hui Liu、Jun Liang、Jian-Jun Dai、Chu-Ting Yang、Yao Fu、Lei Liu
DOI:10.1002/adsc.201200136
日期:2012.6.18
Palladium‐ and nickel‐catalyzed cross‐coupling recations of unactivated alkyl bromides with diboron reagents have been developed as practical methods for the synthesis of primary and secondaryalkylboronic esters. These reactions extend the concept and utility of Pd‐ and Ni‐catalyzed cross‐coupling of aliphatic electrophiles. They also show different substrate selectivity and ligand dependence as compared