170467-60-4Relevant academic research and scientific papers
Novel Intramolecular Michael-type Reactions between Vinyldiphenylphosphine and Pentamethylcyclopentadienyl Coordinated to Rhodium(III): Formation and X-Ray Structures of Heptadentate 10-Electron Donor Ligands
Barthel-Rosa, Luis P.,Catalano, Vincent J.,Nelson, John H.
, p. 1629 - 1630 (1995)
The reaction between vinyldiphenylphosphine and 5-C5Me5)RhCl2>2> proceeds via an intramolecular hydroalkyl addition to yield the two isomeric products 1a and 2a.
Novel compounds formed from reactions of [(η5-Me5C5)MCl2]2 (M = Ru, Rh) with vinyldiphenylphosphene and allyldiphenylphosphine
Barthel-Rosa, Luis P.,Nelson, John H.,Catalano, Vincent J.,Fischer, Jean
, p. 169 - 172 (2007/10/03)
The complexes [(η5-Me5C5)Ru(R3P) 2(NCCH3)]+ PF6-, where R3P is vinyldiphenylphosphine and allyldiphenylphosphine, readily dissociate CH3CN to form η3-phosphaallyl and η3-homophosphaallyl complexes (1 and 2) respectively. While 1 is conformationally rigid in solution, 2 undergoes inversion by a dissociative process in solution. The analogous complex [(η5-Me5C5)Rh(Ph2PCHCH 2)2Cl]+ PF6- undergoes a novel Michael type addition of the methyl CH bonds across the vinyl functionalities of the coordinated phosphine to produce chelating 1,2- and 1,3-bis(diphenylphosphinopropyl) trimethylcyclopentadienides (3 and 4) respectively. In contrast, with Ph2PCH2CHCH2 the classical phosphine complex [(η5-Me5C5)Rh(Ph2PCH 2CHCH2)2Cl]+ PF6- (5) is formed. These new complexes have been characterized by a variety of NMR techniques and by single crystal X-ray crystallography.
