Enone Synthesis via Palladium Catalyzed Reductive Carbonylation of Terminal Acetylenes
作者:Yoshinao Tamaru、Hirofumi Ochiai、Zen-ichi Yoshida
DOI:10.1016/s0040-4039(01)91188-8
日期:1984.1
Aryl vinyl ketones are prepared by the reaction of aryl iodides and terminal acetylenes in the presence of a catalytic amount of PdCl2(PPh3)2, Cp2TiCl2 and a stoichiometric amount of Zn-Cu under an atmospheric pressure of carbon monoxide.
acids to terminal alkynes under mild conditions affords (E)-α,β-unsaturated ketones with good yields. The reaction was achieved with chloro(1,5-cyclooctadiene)rhodium(I) dimer or chlorodicarbonylrhodium(I) dimer as catalytic precursor without additional phosphine as their use inhibits the reaction. Experiments using deuterated 1-hexyne discarded the possibility of a rhodium-vinylidene intermediate, thus
Palladium-catalyzed coupling reaction of acylzirconocene chlorides with hypervalent iodonium salts: synthesis of aryl-substituted ketones
作者:Suk-Ku Kang、Seok-Keun Yoon
DOI:10.1039/b110983a
日期:2002.2.6
The palladium-catalyzed acylation reaction of alkenoyl- and alkanoylzirconocene chlorides with hypervalent iodonium salts afforded the acylated aromatic compounds under mild conditions.