Expanding the horizon of intermolecular trapping of in situ generated α-oxo gold carbenes: efficient oxidative union of allylic sulfides and terminal alkynes via C–C bond formation
作者:Jiabin Li、Kegong Ji、Renhua Zheng、Jonathan Nelson、Liming Zhang
DOI:10.1039/c4cc00739e
日期:——
phosphine as the ligand to gold(I), the alpha-oxo gold carbenes generated in situ via gold-catalyzed intermolecular oxidation of terminal alkynes were effectively trapped by various allylic sulfides, resulting in the formation of alpha-aryl(alkyl)thio-gamma,delta-unsaturated ketones upon facile [2,3]sigmatropic rearrangements.
使用新的 P,S-双齿膦作为金 (I) 的配体,通过金催化末端炔的分子间氧化原位生成的 α-氧代金卡宾被各种烯丙基硫化物有效捕获,从而形成 α -芳基(烷基)硫代-γ,δ-不饱和酮,易于 [2,3] σ 重排。