Ketones, methyl vinyl catalysis, ruthenium complexes

Moreno-Manas et al. [98] reported on a similar effect of triphenylphosphine for the Michael addition of active methylene compounds to n-acceptor olefins such as methyl vinyl ketone, acrylonitrile, and 2-vinylpyridine and dialkyl azodi-carboxylates. They compared the reactivity of RuH2(PPh3)4, RuCl2(PPh3)3, and PPh3 and concluded that for /5-diketones, ketoesters, and ketoamides, triphenylphosphine released from the ruthenium complexes contributes totally or partially to the catalysis. 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ , ]

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