| Literature DB >> 27425194 |
Mirco Fleige1, Juri Möbus, Thorsten Vom Stein, Frank Glorius, Douglas W Stephan.
Abstract
Terminal and internal alkynes are efficiently hydroborated to (E)-alkenyl pinacol boronic esters with excellent yields and selectivities using a Lewis acid catalyst. In the case of Piers' borane (HB(C6F5)2) the borane acts as a pre-catalyst generating dissymmetrically gem-diborylated species of the form RCH2CR'(Bpin)(B(C6F5)2) which are the active catalysts.Entities:
Year: 2016 PMID： 27425194 DOI： 10.1039/c6cc05360b
Source DB: PubMed Journal: Chem Commun (Camb) ISSN： 1359-7345 Impact factor: 6.222