60288-40-6

Upstream product

• 1426064-67-6 [(N-tolyl(2-tolylamino)troponimine(-1H))Pt(CH₃)₂(PPh₂Me)(dimethyl sulfide)][triflate] 
• 3908-55-2 Trimethyl(methylthio)silane 
• 333-27-7 methyl trifluoromethanesulfonate 
• 3385-94-2 hexamethyldisilathiane 

Downstream Products

• 95-47-6 o-xylene 
• 106-42-3 para-xylene 
• 1774-35-2 di(p-tolyl) sulfoxide 
• 108-38-3 m-xylene 
• 75-18-3 dimethylsulfide 
• 119503-58-1 1-methyl-pyridinium trifluoromethanesulfonate 

Relevant academic research and scientific papers

Tris(trimethylsilyl)sulfonium and Methylbis(trimethylsilyl)sulfonium Ions: Preparation, NMR Spectroscopy, and Theoretical Studies

Tris(trimethylsilyl)sulfonium 1 and methylbis(trimethylsilyl)sulfonium 2 ions were prepared as long-lived species by reacting trimethylsilane and trityl tetrakis(pentafluorophenyl)borate (Ph3C+ TPFPB) in the presence of precursor sulfides and characterized by 1H, 13C, and 29Si NMR spectroscopy at -78°C. Attempted preparation of dimethyl(trimethylsilyl)sulfonium ion under similar conditions failed as a result of the formation of the more stabilized trimethylsulfonium ion. Structures, and 13C and 29Si NMR chemical shifts were calculated by density functional theory (DFT)IGLO methods. The calculated results agree well with the experimental data.

Reductive elimination from platinum(IV) aminotroponiminate dimethyl complexes promoted by sterically hindered lewis bases

A series of PtII and PtIV aminotroponimate (ATI = N-tolyl-aminotroponiminate) complexes has been prepared. The PtII complex (ATI)Pt(CH3)(SMe2) (1a) is synthesized from the reaction of [Li][ATI] with (Me)(Cl)Pt(SMe2)2. Addition of either ethylene or carbon monoxide to 1a results in the formation of (ATI)Pt(CH3)(η2-C2H4) (1b) or (ATI)Pt(CH3)(CO) (1c), respectively. Oxidative addition of MeOTf or MeI to 1a results in formation of the PtIV complex [(ATI)Pt(CH 3)2(X)(SMe2)] (X = OTf (3), I (2)). Complex 3 reacts with isocyanides, which replace the triflate ligand to form [(ATI)Pt(CH3)2(CNR)(SMe2)][OTf] (4). Complex 3 also undergoes ligand substitution reactions with azide or cyanide to form (ATI)Pt(CH3)2(N3)(SMe2) (5a) or (ATI)Pt(CH3)2(CN)(SMe2) (5b). Addition of PR3 results in the substitution product [(ATI)Pt(CH3) 2(PR3)(SMe2)][OTf] for phosphines with cone angles ≤136 (P(OMe)3, PMe3, PMe2Ph). The PtIV complex [(ATI)Pt(CH3)2(PPh 2Me)(SMe2)][OTf] (6c) reductively eliminates [PMe 2Ph2][OTf] or [SMe3][OTf] to form the Pt II complex (ATI)Pt(CH3)(PPh2Me) (7a) in solution at room temperature. Addition of 1 equiv of PPh3, which has a cone angle of 145, results in the formation of 50% of PtII(ATI) Pt(CH3)(PR3) and [MePPh3][OTf]. Reaction of 3 with PCy3, which has a cone angle of 170, yields complete and immediate conversion to (ATI)Pt(CH3)(SMe2) and [MePCy 3][OTf].