Competitive reactions forming CH3Cl and CH3OH in the decomposition of the methyl complex of Pt(IV) in aqueous solutions

Mechanistic Aspects of C−H Activation by Pt Complexes

“…In 1982 Zamashchikov et al recorded the 1 H NMR spectrum of a species believed to be PtCl 4 Me(H 2 O) - , where a signal corresponding to Pt−CH 3 was observed at δ 3.38 relative to Me 3 SiOSiMe 3 with characteristic 195 Pt satellites ( 2 J H - Pt = 77 Hz) . In the following years more Pt(IV) alkyl species were observed , and eventually isolated. ,− The Pt(II) methyl complex MePtCl 3 2- , believed to be the first intermediate after C−H bond breaking and deprotonation, proved more elusive. It was eventually obtained, admixed with Me 2 PtCl 2 2- , from the reduction of MePtCl 5 2- with Cp 2 Co by the Bercaw group .…”

“…141 In the following years more Pt(IV) alkyl species were observed 135,142 and eventually isolated. 31,[143][144][145][146][147] The Pt(II) methyl complex MePtCl 3 2-, believed to be the first intermediate after C-H bond breaking and deprotonation, proved more elusive. It was eventually obtained, admixed with Me 2 PtCl 2 2-, from the reduction of MePtCl 5 2with Cp 2 Co by the Bercaw group.…”

Catalysts for C–H functionalization: Platinum, gold and even nanodiamonds

“…model complex and complex isolated from the СН 4 -PtCl 4 2− -PtCl 6 2− reaction mixture were close [22,25]. Kinetic evidence of S N 2 mechanism of reductive elimination as a result of decomposition of K 2 Pt(CH 3 Cl 5 ) in aqueous solution is reported in [26].…”