220920-40-1Relevant academic research and scientific papers
Reaction of isocyanides with [(PPh3)2Pt(η3-CH2CCPh)] + and the formation of the indenyl complex trans-[(PPh3)2Pt(η 1-1H-inden-2-yl)(CNC(CH3)3)]+
Ackermann, Martin N.,Ajmera, Ravi K.,Barnes, Helen E.,Gallucci, Judith C.,Wojcicki, Andrew
, p. 787 - 792 (1999)
The reaction of [(PPh3)2Pt(η3-CH2CCPh)]X (X = CF3SO3-, BF4-, PF6-) with CNR (R = C(CH3)3, CH2Ph) yields a mixture of the η1-propargyl and -allenyl complexes trans-[(PPh3)2-Pt(η1-CH 2C≡CPh)(CNR)]+ and trans-[(PPh3)2Pt(η1-CPh=C=CH 2)(CNR)]+, respectively, in about a 6/1 proportion. Isolation of the pure propargyl complex was possible in several cases (R = C(CH3)3, X = CF3SO3-; R = CH2Ph, X = BF4-, PF6-). In solution the cationic complex trans-[(PPh3)2Pt(η1-CH 2C=CPh)(CNC(CH3)3)]+ rearranges to an indenyl complex which was isolated as the triflate salt trans-[(PPh3)2Pt(η 1-1H-inden-2-yl)(CNC(CH3)3)]CF 3SO3 (4). In contrast trans-[(PPh3)2Pt(η1-CH 2C≡CPh)(CNCH2Ph)]+ does not undergo this rearrangement under similar conditions. The structure of 4·2THF has been determined by X-ray diffraction techniques.
