A K-arylacetylide complex for catalytic terminal alkyne functionalization using KO t Bu as a precatalyst

2019/01/01 by Jasimuddin Ahmed, Asim Kumar Swain, Arpan Das +3 · 1 citation
Chemistry · #Catalytic C–H Functionalization Methods #Catalytic Cross-Coupling Reactions #Catalytic Alkyne Reactions

paper · doi:10.1039/c9cc07833a

openalex publication_date 2019/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/08

Abstract

Herein we report a transition metal free catalytic terminal alkyne functionalization across the C-X triple bond (X = CH and N) with E-selective homo (alkyne-alkyne) and head-to-tail selective hetero (alkyne-nitrile) dimerization. A series of stoichiometric reactions enabled us to crystallize a reactive organometallic intermediate K-arylacetylide complex which was characterized by X-ray crystallography, indicating that an ionic mechanism is operative.

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