I. S. Mikhel, N. Dubrovina, I. Shuklov
Sep 15, 2011
Citations
0
Influential Citations
10
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract Oxidative coupling of 3-(3-tert-butyl-4-hydroxyphenyl)propionic acid methyl ester ( 2 ) gave dimethyl 3,3′-(5,5′-di-tert-butyl-6,6′-dihydroxybiphenyl-3,3′-diyl)-dipropionate ( 1c ), which upon phosphorylation/transesterification with a phosphochloridite derived from ( R )-binaphthol, formed the new unsymmetrical binaphthol-bridged diphosphite 4 . A rhodium catalyst based on 4 as ligand gave predominantly iso-selectivity in the hydroformylation of selected styrenes but opposite regioselectivity with 2,6-disubstituted derivatives. New chelate metal complexes (acac)RhL, PdCl 2 L and PtCl 2 L have been synthesized by reacting 4 with (acac)Rh(CO) 2 , PdCl 2 (MeCN) 2 and PtCl 2 (COD), respectively. The structure of obtained compounds is determined based on 1 H, 13 C, 31 P and 195 Pt NMR spectroscopy and mass spectrometry data.