- A PROCESS FOR THE PREPARATION OF AN ALKYL ALKENOATE
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A process for the preparation of an alkyl alkenoate, wherein a lactone of the general molecular formula (I) wherein n is 1, 2 or 3, R1 is a C1-C4 alkyl group, and R2, R3 and R4 are, independently, a H atom or a C1-C4 alkyl group, is reacted with a C1-C4 alkyl alcohol in a liquid phase in the presence of a strong acid catalyst at transesterification conditions to form the alkyl alkenoate, wherein alkyl alkenoate and alcohol are continuously removed from the liquid phase by distillation.
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Page/Page column 11-14
(2008/06/13)
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- Carbonylation of Organic Halides catalysed by Rhodium Triethylphosphine Complexes
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Allyl and benzyl halides but not phenyl or propyl halides have been carbonylated in ethanol in the presence of rhodium triethylphosphine complexes to their respective butenoic or benzylic esters; no added base was required.
- Simpson, Michael C.,Payne, Marc J.,Cole-Hamilton, David J.
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p. 2899 - 2900
(2007/10/02)
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- SUBSTITUTION NUCLEOPHILE VINYLIQUE PAR LE REACTIF DE REFORMATSKY CATALYSSE PAR DES COMPLEXES DU NICKEL ET DU PALLADIUM ZEROVALENTS. SYNTHESE D'ESTERS β,γ-ETHYLENIQUES
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Zerovalent complexes of palladium and nickel catalyse vinylic nucleophilic substitution by the Reformatsky reagent giving β,γ-ethylenic esters.Formation of a ?-vinylpalladium complex is the rate-determining step of the reaction.
- Fauvarque, J.F.,Jutand, A.
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p. 109 - 114
(2007/10/02)
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