Phosphine-catalyzed dimerization of activated alkenes under ambient and high pressure conditions
作者:Gérard Jenner
DOI:10.1016/s0040-4039(00)00346-4
日期:2000.4
Acrylic compounds dimerizeunder Morita–Baylis–Hillman conditions in the presence of soluble phosphines. Dimerization of β-substituted analogs may require highpressures. The process is selective and high yielding and affords densely functionalized products.
The N-heterocycliccarbene (NHC)-catalyzed dimerizations of a variety of disubstituted Michael acceptors have been investigated. In addition to the tail-to-tail dimerization of methacrylates reported previously, the scope of vinylidene substrates expands to γ-methyl-α-methylene-γ-butyrolactone, dimethyl 2-methylenepentanedioate, dimethyl itaconate, methacrylamides, and 2-isopropenylbenzoxazole, none
Jonczyk, A.; Radwan-Pytlewski, T., Polish Journal of Chemistry, 1995, vol. 69, # 8, p. 1161 - 1167
作者:Jonczyk, A.、Radwan-Pytlewski, T.
DOI:——
日期:——
Synthetic reactions by complex catalysts. XV. Copper(I)-alkyl isocyanide catalyzed dimerization of .alpha.,.beta.-unsaturated carbonyl and nitrile compounds