Selective hydrosilylation of alkynes and ketones: contrasting reactivity between cationic 3-iminophosphine palladium and nickel complexes
作者:Hosein Tafazolian、Robert Yoxtheimer、Rajendr S. Thakuri、Joseph A. R. Schmidt
DOI:10.1039/c7dt00832e
日期:——
hydrosilylation of alkynes and ketones has been explored utilizing palladium- and nickel(allyl) complexes supported by 3-iminophosphine ligands. Palladium and nickel demonstrated distinctly different reactivity profiles, with palladium proving very effective for the hydrosilylation of electron-deficient alkynes, while nickel excelled with ketones and internal alkynes. Additionally, in many cases, regioselective
Nickel(0)-catalyzed synthesis of substituted phenols from cyclobutenones and alkynes
作者:Mark A. Huffman、Lanny S. Liebeskind
DOI:10.1021/ja00007a072
日期:1991.3
The results above show that the convergent synthesis of substituted phenols is possible by nickel(0)-catalyzed ring opening and cycloaddition of cyclobutenones with alkynes. Future efforts will explore application of this method to intramolecular reactions
The development of an organotransition metal synthesis of quinones
作者:Lenny S. Liebeskind、Sherrol L. Baysdon、Michael S. South、Suresh Iyer、James P. Leeds
DOI:10.1016/s0040-4020(01)91423-1
日期:1985.1
A new and very general synthesis of quinones is described from conception to the current state of maturity. The chemistry relies on a convergent joining of a transition metalcomplex and an alkyne to provide benzoquinones (from maleoylmetal complexes) and naphthoquinones (from phthaloylmetal complexes). Significant aspects of this chemistry are its generality (terminal, internal, electron rich, and