220971-56-2Relevant academic research and scientific papers
Oxidative addition reactions of Rh(SbPh3)3(CO)X (X = Cl, Br) with organic phenyl-substituted propargyl compounds. Rhodium(III) phenylpropargyl products and their conversion to rhodiacyclic complexes
Kayan, Asgar,Wojcicki, Andrew
, p. 187 - 193 (2001)
Reactions of Rh(SbPh3)3(CO)X (X = Cl (1), Br (2)) with PhC≡CCH2Y (Y = OTs, Cl, Br) in CH2Cl2 at ambient temperature lead to formation of the oxidative addition products Rh(SbPh3)2(CO)X(Y)(η1-CH2C ≡CPh) (X = Cl, Y = OTs (3), Cl (4), Br (5); X = Br, Y = OTs (6), Br (7)). Complexes 3 and 6 each react with pyridine at room temperature to afford the rhodiacyclopent-3-ene-2-ones Rh(SbPh3)2(py)X(η2-C(O)C(Ph)=C(OTs)CH 2) (X = Cl (8), Br (9)). Treatment with AgOTs converts 8 to Rh(SbPh3)2(py)(OTs)(η2-C(O)C(Ph)=C(OTs) CH2) (10). Addition of AgOTf (or AgBF4) and then immediately an excess of PhC≡CCH2Br to a CH2Cl2 solution of 1 at ambient temperature affords an orange solid that is formulated tentatively as [Rh(SbPh3)2(CO)Cl(η3-CH2 CCPh)]OTf (or -BF4) (11a and 11b). All new complexes were characterized by a combination of elemental analysis, FAB mass spectrometry, IR and NMR (1H and 13C{1H}) spectroscopy and conductance measurements.
