Catalytic Enantioselective Synthesis of β-Allenyl Boronic Esters by Conjunctive Cross-Coupling with Propargylic Carbonates.
Sign Up to like & getrecommendations! Published in 2019 at "ACS catalysis"
DOI: 10.1021/acscatal.9b04453
Abstract: Enantioselective conjunctive cross-coupling with propargylic carbonates affords (β-boryl allenes as the reaction product. The reaction is found to proceed through the intermediacy of dimethoxyboronate complexes that are generated in situ by a strain-induced ligand exchange… read more here.
Keywords: conjunctive cross; catalytic enantioselective; propargylic carbonates; coupling propargylic ... See more keywords
Tri(o-tolyl)phosphine for highly efficient Suzuki coupling of propargylic carbonates with boronic acids.
Sign Up to like & getrecommendations! Published in 2018 at "Chemical communications"
DOI: 10.1039/c8cc04186e
Abstract: A highly efficient catalytic system consisting of Pd2(dba)3·CHCl3 and tri(o-tolyl)phosphine has been identified for the coupling of propargylic carbonates with different types of organo boronic acids at room temperature. Excellent central-to-axial chirality transfer was also… read more here.
Keywords: boronic acids; propargylic carbonates; coupling propargylic; tri tolyl ... See more keywords