ALKYL(HYDRIDO)PIATINUM(IV) COMPLEXES - THE MECHANISM OF PT-C BOND PROTONOLYSIS

被引：137

作者：

HILL, GS ^{[1
]}

RENDINA, LM ^{[1
]}

PUDDEPHATT, RJ ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,DEPT CHEM,LONDON,ON N6A 5B7,CANADA

来源：

ORGANOMETALLICS | 1995年 / 14卷 / 10期

关键词：

D O I：

10.1021/om00010a073

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The complexes [PtMe(2)(N-N)] {N-N = (t)bu(2)-bpy (4,4'-di-tert-butyl-2,2'-bipyridine), bpy (2,2'-bipyridine), or phen (1,10-phenanthroline)} react with HX(X = Cl, Br, I, O2CCF3, SO3CF3) to yield [PtXMe(N-N)] and CH4, by an oxidative addition/reductive elimination mechanism. The new alkyl(hydrido)platinum(IV) intermediates [PtCl(H)Me(2)((t)bu(2)bpy)])] (1), [PtBr(H)Me(2)((t)bu(2)bpy)] (2), [PtH(I)Me(2)((t)bu(2)bpy)] (3), and [Pt(Cl(H)Me(2)(bpy)], (4), formed by trans oxidative addition of HX; have been fully characterized at -78 degrees C by H-1 NMR spectroscopy. Rapid reductive elimination of CH4 ensues at higher temperatures to yield the corresponding organoplatinum(II) products [PtXMe(N-N)]; The thermal stability of the platinum(IV) intermediates follows the sequence X = Cl > Br > I > O2CCF3, SO3CF3.

引用

页码：4966 / 4968

页数：3

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