Activation of C–H bond by cis-[Pt(NO3)2(PPh3)2], cyclometallation of tetramethylthiourea
摘要:
Reaction of cis-[Pt(NO3)(2)(PPh3)(2)] with tetramethylthiourea (tmtu) affords [Pt(PPh3)(2)(tmtu*)]NO3, in which tmtu* is tetramethylthiourea deprotonated at one methyl group. An X-ray investigation has shown that tmtu* is cyclometallated with Pt-S and Pt-CH2 bonds. The likely role of dissociation of the labile nitrato ligands, to give cationic intermediates, is outlined. (C) 2003 Elsevier B.V. All rights reserved.
Activation of C–H bond by cis-[Pt(NO3)2(PPh3)2], cyclometallation of tetramethylthiourea
摘要:
Reaction of cis-[Pt(NO3)(2)(PPh3)(2)] with tetramethylthiourea (tmtu) affords [Pt(PPh3)(2)(tmtu*)]NO3, in which tmtu* is tetramethylthiourea deprotonated at one methyl group. An X-ray investigation has shown that tmtu* is cyclometallated with Pt-S and Pt-CH2 bonds. The likely role of dissociation of the labile nitrato ligands, to give cationic intermediates, is outlined. (C) 2003 Elsevier B.V. All rights reserved.