88598-80-5Relevant academic research and scientific papers
PROCESS FOR THE DIMERIZATION OF ACTIVATED OLEFINS
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Page/Page column 16, (2015/12/08)
The present invention relates to a process for the preparation of compounds or a mixture of compounds of the general formulae I.a or I.b wherein R1 is selected from C1-C12-alkyl, C3-C6-cycloalkyl, -C(
On the Catalytic Dimerization of Acrylic Acid Derivatives by Palladium Complexes. IV. The Dimerization of Methyl Methacrylate
Oehme, G.
, p. 779 - 790 (2007/10/02)
Methyl methacrylate has been dimerized to a mixture of 2.5-di(methoxycarbonyl)-hex-1-ene (1) and (E)-2.5-di(methoxycarbonyl)-hex-2-ene (2) by catalytic systems containing dichlorobis (nitrile)-palladium(II) and silver tetrafluoroborate.Codimerization experiments with methyl acrylate show a lower reactivity of methyl methacrylate.Oxidative addition of β-chloro methyl methacrylate to tetrakis(triphenylphosphine)palladium(0) gave β-palladio methyl methacrylates (8,9) suitable for model investigations of the catalytic reaction.A proposal is given for a mechanism via Pd(IV) intermediates.
