Synthesis and Structure of Novel Iridium(I) Complexes Containing η4-1,6-Diene and Diphosphine Ligands:  Remarkable Effect of Ligand Bite Angle upon Ligand Dissociation

2004 ◽  
Vol 23 (8) ◽  
pp. 1730-1737 ◽  
Author(s):  
Tatsuya Makino ◽  
Yoshihiko Yamamoto ◽  
Kenji Itoh
Keyword(s):  
Diphosphine Ligands ◽  
Remarkable Effect ◽  
Ligand Dissociation ◽  
Bite Angle

scholarly journals P-stereogenic wide bite angle diphosphine ligands

Tetrahedron ◽  
2019 ◽  
Vol 75 (1) ◽  
pp. 47-56 ◽  
Author(s):  
Christine F. Czauderna ◽  
Alexandra M.Z. Slawin ◽  
David B. Cordes ◽  
Jarl Ivar van der Vlugt ◽  
Paul C.J. Kamer
Keyword(s):  
Diphosphine Ligands ◽  
Bite Angle

scholarly journals The coordination behaviour of large natural bite angle diphosphine ligands towards methyl and 4-cyanophenylpalladium(ii) complexes

2002 ◽  
pp. 2308 ◽  
Author(s):  
Martin A. Zuideveld ◽  
Bert H. G. Swennenhuis ◽  
Maarten D. K. Boele ◽  
Yannick Guari ◽  
Gino P. F. van Strijdonck ◽  
...  
Keyword(s):  
Diphosphine Ligands ◽  
Bite Angle ◽  
Coordination Behaviour

scholarly journals New Diphosphine Ligands Based on Heterocyclic Aromatics Inducing Very High Regioselectivity in Rhodium-Catalyzed Hydroformylation: Effect of the Bite Angle

1995 ◽  
Vol 14 (6) ◽  
pp. 3081-3089 ◽  
Author(s):  
Mirko Kranenburg ◽  
Yuri E. M. van der Burgt ◽  
Paul C. J. Kamer ◽  
Piet W. N. M. van Leeuwen ◽  
Kees Goubitz ◽  
...  
Keyword(s):  
Diphosphine Ligands ◽  
Bite Angle ◽  
Heterocyclic Aromatics ◽  
Very High

Platinum and Palladium Imido and Oxo Complexes with Small Natural Bite Angle Diphosphine Ligands

2003 ◽  
Vol 42 (4) ◽  
pp. 1282-1295 ◽  
Author(s):  
U. Anandhi ◽  
Todd Holbert ◽  
Dennis Lueng ◽  
Paul R. Sharp
Keyword(s):  
Diphosphine Ligands ◽  
Oxo Complexes ◽  
Bite Angle

Intermolecular Hydroacylation: High Activity Rhodium Catalysts Containing Small-Bite-Angle Diphosphine Ligands

2012 ◽  
Vol 134 (10) ◽  
pp. 4885-4897 ◽  
Author(s):  
Adrian B. Chaplin ◽  
Joel F. Hooper ◽  
Andrew S. Weller ◽  
Michael C. Willis
Keyword(s):  
High Activity ◽  
Diphosphine Ligands ◽  
Rhodium Catalysts ◽  
Bite Angle

ChemInform Abstract: Effect of the Bite Angle of Diphosphine Ligands on Activity and Selectivity in the Nickel-Catalyzed Hydrocyanation of Styrene.

ChemInform ◽  
2010 ◽  
Vol 27 (11) ◽  
pp. no-no
Author(s):  
M. KRANENBURG ◽  
P. C. J. KAMER ◽  
P. W. N. M. VAN LEEUWEN ◽  
D. VOGT ◽  
W. KEIM
Keyword(s):  
Diphosphine Ligands ◽  
Bite Angle

scholarly journals Phosgene-free synthesis of 1,3-diphenylurea via catalyzed reductive carbonylation of nitrobenzene

2012 ◽  
Vol 84 (3) ◽  
pp. 473-484 ◽  
Author(s):  
Andrea Vavasori ◽  
Lucio Ronchin
Keyword(s):  
Phenyl Isocyanate ◽  
High Yield ◽  
Diphosphine Ligands ◽  
Alternative Route ◽  
Reaction Conditions ◽  
Bite Angle ◽  
Reductive Carbonylation ◽  
One Step ◽  
Optimum Reaction ◽  
Synthetic Intermediate

1,3-Diphenylurea (DPU) has been proposed as a synthetic intermediate for phosgene-free synthesis of methyl N-phenylcarbamate and phenyl isocyanate, which are easily obtained from the urea by reaction with methanol. Such an alternative route to synthesis of carbamates and isocyanates necessitates an improved phosgene-free synthesis of the corresponding urea. In this work, it is reported that Pd(II)-diphosphine catalyzed reductive carbonylation of nitrobenzene in acetic acid (AcOH)-methanol proceeds in high yield and selectivity as a one-step synthesis of DPU. We have found that the catalytic activity and selectivity of this process depends on solvent composition and on the bite angle of the diphosphine ligands. Under optimum reaction conditions, yields in excess of 90 molar % and near-quantitative selectivity can be achieved.

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