Lewis acid catalysis: catalytic hydroboration of alkynes initiated by Piers' borane

Autor: Frank Glorius, Thorsten vom Stein, Douglas W. Stephan, Mirco Fleige, Juri Möbus
Rok vydání: 2016
Předmět:
Zdroj: Chemical Communications. 52:10830-10833
ISSN: 1364-548X
1359-7345
Popis: Terminal and internal alkynes are efficiently hydroborated to (E)-alkenyl pinacol boronic esters with excellent yields and selectivities using Piers' borane, (HB(C6F5)2) as a pre-catalyst for the dissymmetrically gem-diborylated catalyst of the form RCH2CR′(Bpin)(B(C6F5)2).
Databáze: OpenAIRE