Rhodium catalyzed aqueous biphasic hydroformylation of naturally occurring allylbenzenes in the presence of water-soluble phosphorus ligands

Autor:	Elena V. Gusevskaya, Mariandry Rodriguez, Kelley C.B. Oliveira, Margarita Borusiak, María Modroño Alonso, Merlin Rosales, Beatriz González, Luis G. Melean, Eduardo N. dos Santos, Pablo J. Baricelli
Rok vydání:	2015
Předmět:	Aqueous solution Chemistry Process Chemistry and Technology Regioselectivity chemistry.chemical_element Catalysis Rhodium chemistry.chemical_compound Bromide Diphosphane Organic chemistry TPPTS Hydroformylation
Zdroj:	Applied Catalysis A: General. 490:163-169
ISSN:	0926-860X
DOI:	10.1016/j.apcata.2014.11.028
Popis:	The rhodium-catalyzed hydroformylation of eugenol was performed in aqueous biphasic systems using various water soluble phosphines: TPPTS (triphenylphosphinetrisulphonated); BDPPETS (bisdiphenylphosphinoethanetetrasulphonated), BDPPPTS (bisdiphenylphosphinopropanetetrasulphonated) and BISBIS (diphosphane 2,2′-bis(diphenylphosphinomethyl)-1,1′-biphenyl disuphonated). The addition of the cationic surfactant CTAB (cetyltrimethylammonium bromide) increased the reaction rate; however, high surfactant concentrations unfavorably affected the reaction selectivity. The regioselectivity of the hydroformylation was strongly depended on the ligand nature. The procedure was successfully extended to other allylbenzenes, i.e., estragole and safrole, producing several fragrance compounds starting from the substrates easily available from natural bio-renewable resources.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1a44110c30a511416d90454956d609f1 https://doi.org/10.1016/j.apcata.2014.11.028 Zobrazit plný text záznamu Full Text from ScienceDirect