Visible‐light‐induced photocatalytic decarboxylativealkynylations of carboxylicacids have been developed for the first time. The reaction features extremely mild conditions, broad substrate scope, and avoids additional oxidants. Importantly, a decarboxylative carbonylative alkynylation has also been carried out in the presence of carbon monoxide (CO) under photocatalytic conditions, which affords
Palladium-, ligand-, and solvent-free synthesis of ynones by the coupling of acyl chlorides and terminal alkynes in the presence of a reusable copper nanoparticle catalyst
作者:Weijiang Sun、Yan Wang、Xuan Wu、Xiaoquan Yao
DOI:10.1039/c3gc40980e
日期:——
Supported copper nanoparticles are utilized for the first time as a highly efficient and reusable catalyst in the coupling of acylchlorides and terminalalkynes to prepare various ynones. The reaction is carried out underpalladium-, ligand-, and solvent-freeconditions. The catalyst can be simply recovered and reused several times without significant loss in catalytic activity.