Copper-Catalyzed Highly Regio- and Stereoselective Directed Hydroboration of Unsymmetrical Internal Alkynes: Controlling Regioselectivity by Choice of Catalytic Species

Kazuhiko Semba, Tetsuaki Fujihara, Jun Terao, and Yasushi Tsuji

Chem. Eur. J. 2012, 18, 4179 – 4184

DOI: 10.1002/chem.201103612