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.