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- W2072573552 endingPage "9456" @default.
- W2072573552 startingPage "9442" @default.
- W2072573552 abstract "The Pt(IV) complexes P2PtMe3R [P2 = dppe (PPh2(CH2)2PPh2), dppbz (o-PPh2(C6H4)PPh2); R = Me, H] undergo reductive elimination reactions to form carbon−carbon or carbon−hydrogen bonds. Mechanistic studies have been carried out for both C−C and C−H coupling reactions and the reductive elimination reactions to form ethane and methane are directly compared. For C−C reductive elimination, the evidence supports a mechanism of initial phosphine chelate opening followed by C−C coupling from the resulting five-coordinate intermediate. In contrast, mechanistic studies on C−H reductive elimination support an unusual pathway at Pt(IV) of direct coupling without preliminary ligand loss. The complexes fac- P2PtMe3R (P2 = dppe, R = Me, H; P2 = dppbz, R = Me) have been characterized crystallographically. The Pt(IV) hydrides, fac-P2PtMe3H (P2 = dppe, dppbz), are rare examples of stable phosphine ligated Pt(IV) alkyl hydride complexes." @default.
- W2072573552 created "2016-06-24" @default.
- W2072573552 creator A5009416689 @default.
- W2072573552 creator A5042349313 @default.
- W2072573552 date "2003-07-11" @default.
- W2072573552 modified "2023-10-16" @default.
- W2072573552 title "Mechanisms of C−C and C−H Alkane Reductive Eliminations from Octahedral Pt(IV): Reaction via Five-Coordinate Intermediates or Direct Elimination?" @default.
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