Hydroformylation of styrene in the presence of platinum(II) complex catalysts incorporating cyclic phosphines and phosphonous diesters as P-ligands

Autor: Andrea Kerényi, László Kollár, Péter Pongrácz, Viktória Ujj, Viktória Barbara Kovács, György Keglevich
Rok vydání: 2011
Předmět:
Zdroj: Journal of Organometallic Chemistry. 696:2234-2237
ISSN: 0022-328X
DOI: 10.1016/j.jorganchem.2010.11.045
Popis: The hydroformylation activity of various 5- and 6-membered P -heterocycles was investigated in platinum-catalysed hydroformylation of styrene. All of the tested ligands, such as the phosphole-, oxaphosphorine- and phoshinine-based ligands proved to be catalytically active. Especially good aldehyde selectivities were obtained with the chelating diphenylphosphino-tetrahydrophosphinine and diphenylphosphino-hexahydrophosphinine ligands. While the two aldehyde regioisomers were formed close to equimolar amounts with the monodentate ligands, high branched selectivities were observed with the chelating ones. The effect of the 4-substitution of the parent styrene on chemo- and regioselectivity was investigated.
Databáze: OpenAIRE