restricted to using preformed stoichiometric acyl-metal reagents. Moreover, the (catalytic) enantioselective variants remain unexplored, and the asymmetricsynthesis of chiral acyloins has met significant challenges in organicsynthesis. Here, we uncover the highly enantioselective coupling of acid chlorides with α-bromobenzoates by nickel catalysis for producing enantioenriched protected α-hydroxy ketones
Preparation and palladium-mediated cross-coupling of α-benzoyloxyalkylzinc bromides
作者:Komei Sakata、Daisuke Urabe、Masayuki Inoue
DOI:10.1016/j.tetlet.2013.05.114
日期:2013.8
report a two-step preparation protocol of α-benzoyloxyalkylzinc bromides from α-benzoyloxyalkyl selenides, and their application to palladium-catalyzedcross-coupling reactions with aryl and vinyl iodides. The developed method effectively provides a variety of benzoyl-protected benzylic and allylic alcohol derivatives through the formation of C(sp3)–C(sp2) bonds without affecting various polar functional