Cationic Ti(IV) and neutral Ti(III) titanocene-phosphinoaryloxide frustrated Lewis pairs: hydrogen activation and catalytic amine-borane dehydrogenation

被引：57

作者：

Chapman, Andy M. ^{[1
]}

Wass, Duncan F. ^{[1
]}

机构：

[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

来源：

DALTON TRANSACTIONS | 2012年 / 41卷 / 30期

关键词：

METAL-FREE; ROOM-TEMPERATURE; PI-DONATION; COMPLEXES; REACTIVITY; TITANIUM; POLYMERIZATION; CHEMISTRY; CLEAVAGE; DIMERS;

D O I：

10.1039/c2dt30168g

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Titanium-phosphorus frustrated Lewis pairs (FLPs) based on titanocene-phosphinoaryloxide complexes have been synthesised. The cationic titanium(IV) complex [Cp2TiOC6H4P(Bu-t)(2)][B(C6F5)(4)](2) reacts with hydrogen to yield the reduced titanium(III) complex [Cp2TiOC6H4PH(Bu-t)(2)][B(C6F5)(4)] 5. The titanium(III)-phosphorus FLP [Cp2TiOC6H4P(Bu-t)(2)] 6 has been synthesised either by chemical reduction of [Cp2Ti(Cl)OC6H4P(Bu-t)(2)] 1 with [CoCp*(2)] or by reaction of [Cp2Ti{N(SiMe3)(2)}] with 2-C6H4(OH){P(Bu-t)(2)}. Both 2 and 6 catalyse the dehydrogenation of Me2HN center dot BH3.

引用

页码：9067 / 9072

页数：6

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