21481-17-4Relevant academic research and scientific papers
Phosphinorhodium-catalyzed dehalogenation of chlorinated and fluorinated ethylenes: Distinct mechanisms with triethylsilane and dihydrogen
Peterson, Alicia A.,Thoreson, Kristen A.,McNeill, Kristopher
, p. 5982 - 5991 (2010/02/16)
Catalytic dehalogenation of chlorinated and fluorinated ethylenes by (PR3)3RhCl complexes is described. The C-Cl and C-F bonds are activated by the catalyst in the presence of triethylsilane (Et 3SiH) or dihydrogen (H
Regioselectivity in the rhodium catalysed 1,4-hydrosilylation of isoprene. Aspects on reaction conditions and ligands
Gustafsson, Magnus,Frejd, Torbj?rn
, p. 438 - 443 (2007/10/03)
The regioselectivity in the Rh catalysed 1,4-hydrosilylation of isoprene was investigated. Variation of solvents and temperature did not significantly affect the isomer distribution between tail-product (I) and head-product (II). The choice of ligands had
FORMATION OF DIARYLS BY THERMAL DECOMPOSITION OF RHODIUM(I) TRIARYLPHOSPHINE COMPLEXES
Lewin, Maxine,Aizenshtat, Zeev,Blum, Jochanan
, p. 255 - 261 (2007/10/02)
Chlorotris(triphenylphosphine)rhodium, RhCl(PPh3)3 undergoes thermal decomposition above 140 deg C in solution and in the solid state to yield biphenyl.Rhodium complexes with para-substituted triphenylphosphine ligands form exclusively 4,4'-disubstituted biphenyls.Mixtures of two complexes RhCl(PAr3)3 and RhCl(PAr'3)3 form the crossed diaryl ArAr' and two non-crossed compounds (Ar)2 and (Ar')2.The mechanism is assumed to involve dissociation of RhCl(PPh3)3 into PPh3 and solvated RhCl(PPh3)2 followed by oxidative addition of the liberated phosphine to the latter bis-triphenylphosphine compound.Evidence for a phenyl-rhodium intermediate has been provided by phenylation of styrene by RhCl(PPh3)3.In an independent process, RhCl(PPh3)3 forms benzene by an ortho-metallation route.
