Suzuki Cross-Couplings of Unactivated Secondary Alkyl Bromides and Iodides
作者:Jianrong (Steve) Zhou、Gregory C. Fu
DOI:10.1021/ja039889k
日期:2004.2.1
The capacity to employ unactivated alkyl electrophiles as coupling partners will markedly increase the already exceptional utility of metal-catalyzed cross-coupling processes. This communication describes the development of a method that achieves the first Suzuki reactions of unactivated secondaryalkylbromides and iodides. The ability to couple readily available, easy-to-handle boronic acids is an
Stille Cross-Couplings of Unactivated Secondary Alkyl Halides Using Monoorganotin Reagents
作者:David A. Powell、Toshihide Maki、Gregory C. Fu
DOI:10.1021/ja0436300
日期:2005.1.1
The first catalyst that achieves Stille cross-couplings of secondary (as well as primary) alkyl halides has been developed. The method employs easily handled and inexpensive catalyst components (NiCl2 and 2,2'-bipyridine) and, through the use of monoorganotin reagents, avoids the formation of toxic and difficult-to-remove triorganotin side products.