Activation of Alkyl C-F Bonds by B(C6F5)3: Stoichiometric and Catalytic Transformations

被引：129

作者：

Caputo, Christopher B. ^{[1
]}

Stephan, Douglas W. ^{[1
]}

机构：

[1] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada

来源：

ORGANOMETALLICS | 2012年 / 31卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

FRUSTRATED LEWIS PAIRS; OXIDATIVE ADDITION; C(SP(3))-F BONDS; REACTIVITY; MECHANISM; HYDRODEFLUORINATION; DIHYDROGEN; CLEAVAGE; ACID; ION;

D O I：

10.1021/om200885c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The Lewis acid B(C6F5)(3) is shown to activate a series of alkyl fluorides. In stoichiometric reactions, treatment of sterically demanding phosphines with B(C6F3)(3)/alkyl fluorides gives phosphonium fluoroborate salts while treatment of B(C6F5)(3)/alkyl fluorides with the salts [tBu(3)PX][CB(C6F5)(3)] (X = H, PhS) gives the alkane and the salt byproduct [tBu(3)PX][FB(C6F5)(3)]. These fluoroalkanes are also catalytically converted to the corresponding alkanes by reaction of the fluoroalkane and Et3SiH using B(C6F5)(3) as the catalyst.

引用

页码：27 / 30

页数：4

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