Surface active phosphines for catalysis under two-phase reaction conditions. P(menthyl) [(CH2)8C6H4-p-SO3Na]2 and the hydroformylation of styrene

Autor:	Brian E. Hanson, Tamas Bartik, Berit Bartik, Hao Ding
Rok vydání:	1995
Předmět:	chemistry.chemical_classification Process Chemistry and Technology chemistry.chemical_element Medicinal chemistry Catalysis Rhodium Styrene chemistry.chemical_compound Hydrocarbon chemistry Yield (chemistry) Organic chemistry Physical and Theoretical Chemistry TPPTS Phosphine Hydroformylation
Zdroj:	Journal of Molecular Catalysis A: Chemical. 98:117-122
ISSN:	1381-1169
Popis:	The novel optically active phosphine, bis(8-phenyloctyl) (Menth) phosphine, (Menth = 1R,3R,4S( - )menthyl) is synthesized and sulfonated under mild conditions to yield the corresponding sulfonated phosphine, disodium bis-(8-(para-sulfonatophenyl)octyl) (Menth) phosphine. The water soluble phosphine is used to generate an aqueous-methanol rhodium catalyst for the hydroformylation of styrene. The catalyst shows high catalytic activity, but virtually no optical induction. Normal to branch ratios for the hydroformylation of styrene are in the range 0.35 to 0.5. The catalytic data with TPPTS is given for comparison. TPPTS yields catalysts that are less active under two phase reaction conditions and slightly less selective for formation of 2-phenylpropanal.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4f4464729234d87fef1998ff80d74a88 https://doi.org/10.1016/1381-1169(95)00012-7 Zobrazit plný text záznamu Full Text from ScienceDirect