Late-Stage Diversification of Biarylphosphines through Rhodium(I)-Catalyzed C–H Bond Alkenylation with Internal Alkynes
作者:Zhuan Zhang、Marie Cordier、Pierre H. Dixneuf、Jean-François Soulé
DOI:10.1021/acs.orglett.0c02023
日期:2020.8.7
We report herein P(III)-directed C–H bond alkenylation of (dialkyl)- and (diaryl)biarylphosphines using internal alkynes. Chloride-free [Rh(OAc)(COD)]2 acts as a better catalyst than commercially available [RhCl(COD)]2. Conditions were developed to control the mono- and difunctionalization depending on the alkyne stoichiometry. One of these novel bisalkenylated (dialkyl)biarylphosphines was employed