Hydroformylation of alkenes and alkynes using a heterobinuclear RhW catalyst

Autor:	Tania De Simone, W. Roy Jackson, Ron S. Dickson, Eva M. Campi
Rok vydání:	1994
Předmět:	chemistry.chemical_classification Alkene Alkyne Aldehyde Medicinal chemistry Catalysis Inorganic Chemistry chemistry.chemical_compound chemistry Allyl acetate Materials Chemistry Vinyl acetate Organic chemistry Physical and Theoretical Chemistry Hydroformylation Dithiane
Zdroj:	Inorganica Chimica Acta. 220:187-192
ISSN:	0020-1693
DOI:	10.1016/0020-1693(94)03871-6
Popis:	Hydroformylation reactions of a series of alkenes and alkynes have been carried out using the heteronuclear RhW catalyst, (CO)4 W(μ-PPh 2 ) 2 R hH(CO)(PPh3) (1). The results of these reactions have been compared with corresponding reactions using [Rh(OAc)2]2 as catalyst. Catalysis of a reaction of styrene using 1 gave a very high yield of the branched chain aldehyde containing only a trace of the straight chain isomer. Reactions of the phosphinoalkene, Ph2P(CH2)3CHCH2 (7) and the corresponding alkyne, Ph2P(CH2)3CCH (11) gave similar products using either catalyst system with the alkryne reaction being significantly slower. Reaction of the alkenyl dithiane, S(CH 2 ) 3 SC HCH2CHCH2 (2), using the RhW catalyst (1) gave a higher ratio of linear to branched aldehydes (47 linear:53 branched) than the corresponding reaction using [Rh(OAc)2]2 (25 linear:75 branched). Reactions of vinyl acetate using 1 as catalyst gave a significant amount of linear aldehyde in contrast to reactions using [Rh(OAc)2]2 but reactions of allyl acetate gave similar products for both catalyst systems.
Databáze:	OpenAIRE
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