Isomerization of Aldehydes Catalyzed by Rhodium(I) Olefin Complexes

Autor:	Maurice Brookhart, Christian P. Lenges
Rok vydání:	1999
Předmět:	chemistry.chemical_classification Olefin fiber chemistry.chemical_element General Chemistry Medicinal chemistry Catalysis Rhodium Formylation chemistry Organic chemistry Isomerization Hydroformylation Alkyl
Zdroj:	Angewandte Chemie International Edition. 38:3533-3537
ISSN:	1433-7851
DOI:	10.1002/(sici)1521-3773(19991203)38:23<3533::aid-anie3533>3.0.co;2-e
Popis:	A mixture of isomeric aldehydes is formed in a catalytic isomerization of alkyl aldehydes with [C(5)Me(5)Rh(olefin)(2)] complexes. This process offers an indirect method for altering the n:iso ratio of aldehydes formed in hydroformylation reactions. For example the reaction of n-butanal with [C(5)Me(5)Rh(CH(2)=CHMe)(2)] (1) results in the formation of a bis-alkyl carbonyl rhodium complex 2 which is the resting state during the isomerization of n-butanal to a mixture of n- and iso-butanals (see scheme). In the presence of other olefins transfer formylation is observed.
Databáze:	OpenAIRE
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