A phosphine-free heterogeneous coupling of acyl chlorides with terminal alkynes catalyzed by an MCM-41-immobilized palladium complex
作者:Bin Huang、Lin Yin、Mingzhong Cai
DOI:10.1039/c3nj00425b
日期:——
The phosphine-free heterogeneous coupling of acyl chlorides with terminalalkynes was achieved in triethylamine at 50 °C in the presence of a 0.2 mol% 3-(2-aminoethylamino)propyl-functionalized MCM-41-immobilized palladium complex [MCM-41-2N-Pd(OAc)2], yielding a variety of ynones in good to excellent yields. This novel heterogeneous palladiumcatalyst can be conveniently prepared from commercially
Coupling and Carbonylation of Iodoaromatics and Terminal Alkynes or Alkynols Catalyzed by a Dimeric Palladium Hydroxide
作者:Lionel Delaude、Anna M. Masdeu、Howard Alper
DOI:10.1055/s-1994-25660
日期:——
The palladium(II) complex [(Ph3P)Pd(Ph)(μ-OH)]2 is an effective catalyst for the coupling and carbonylation of alkynes and iodoarenes to give acetylenic ketones in 63-94% yields. Acetylenic hydroxy ketones were formed using secondary or tertiary alkynols as reactants.