Modular diphosphine ligands based on bisphenol A backbones
摘要:
A straightforward two-step synthesis is used to obtain new phosphorus-containing ligands based on readily available bisphenol A type backbones. Five diphosphine ligands have been prepared in good yields. An X-ray crystallographic study is presented for ligand 5. Preliminary results on rhodium-catalyzed hydroformylation exemplify the use of these ligands for homogeneous catalysis. (C) 2003 Elsevier Science Ltd. All rights reserved.
Modular diphosphine ligands based on bisphenol A backbones
作者:Jarl Ivar van der Vlugt、Josep M. Bonet、Allison M. Mills、Anthony L. Spek、Dieter Vogt
DOI:10.1016/s0040-4039(03)00948-1
日期:2003.6
A straightforward two-step synthesis is used to obtain new phosphorus-containing ligands based on readily available bisphenol A type backbones. Five diphosphine ligands have been prepared in good yields. An X-ray crystallographic study is presented for ligand 5. Preliminary results on rhodium-catalyzed hydroformylation exemplify the use of these ligands for homogeneous catalysis. (C) 2003 Elsevier Science Ltd. All rights reserved.
Platinum Complexes of Rigid Bidentate Phosphine Ligands in the Hydroformylation of 1-Octene
作者:Jarl Ivar van der Vlugt、Ruben van Duren、Guido D. Batema、René den Heeten、Auke Meetsma、Jan Fraanje、Kees Goubitz、Paul C. J. Kamer、Piet W. N. M. van Leeuwen、Dieter Vogt
DOI:10.1021/om050575a
日期:2005.10.1
has been studied by NMR spectroscopy, and the X-raycrystalstructures of the resulting complexes 4 and 5 were determined. The 31P NMRspectra of the mononuclear products demonstrate solely cis coordination for both bidentate ligands, with corresponding coupling constants JPt-P of 3810 Hz (cis-[PtCl2(1)], complex 4) and 3712 Hz (cis-[PtCl2(2)], 5). The bite angles P1−Pt−P2 were 98.74 and 105.89°, respectively