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Ruthenium Catalyzed Hydroboration of Terminal Alkynes to Z-Vinylboronates

Chidambaram Gunanathan, Markus Hölscher, Fangfang Pan and Walter Leitner*

*Institut für Technische Chemie und Makromolekulare Chemie, RWTH Aachen University, Aachen 52074, Germany, Email: leitneritmc.rwth-aachen.de

C. Gunanathan, M. Hölscher, F. Pan, W. Leitner, J. Am. Chem. Soc., 2012, 134, 14349-14352.

DOI: 10.1021/ja307233p (free Supporting Information)


Abstract

A ruthenium hydride pincer complex catalyzes the anti-Markovnikov addition of pinacolborane to terminal alkynes yielding Z-vinylboronates at mild conditions. The catalytic cycle involves rearrangement of coordinated alkyne to Z-vinylidene as a key step for the apparent trans-hydroboration.

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Key Words

vinylboronates


ID: J48-Y2012-2810