Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1989-03-09
1990-11-13
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
560 55, C07C 6976
Patent
active
049703323
ABSTRACT:
A process for producing cinnamates comprising reacting an iodobenzene compound with an acrylate ester in the presence of trialkylamine and a catalyst comprising palladium on a support. In one embodiment, 2-ethylhexyl-p-methoxycinnamate is produced by the process comprising diazotizing p-anisidine to produce a diazotization product and reacting the diazotization product with an aqueous iodide solution to produce 4-iodoanisole, reacting the 4-iodoanisole product with 2-ethylhexylacrylate in the presence of trialkylamine and a catalyst comprising palladium on a support to produce 2-ethylhexyl-p-methoxycinnamate and a trialkylamine-hydroiodide salt and then recovering iodide and trialkylamine from the trialkylamine-hydroiodide salt by reacting the salt with an alkali hydroxide.
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Killos Paul J.
Mallinckrodt Inc.
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