Alkylpalladium N-Heterocyclic Carbene Complexes: Synthesis, Reactivity, and Catalytic Properties

被引：33

作者：

Esposito, Oriana ^{[2
]}

Gois, Pedro M. P. ^{[1
,2
,3
]}

Lewis, Alexandra K. de K. ^{[1
]}

Caddick, Stephen ^{[1
]}

Cloke, F. Geoffrey N. ^{[2
]}

Hitchcock, Peter B. ^{[2
]}

机构：

[1] UCL, Dept Chem, London WC1H OAJ, England

[2] Univ Sussex, Sch Life Sci, Dept Chem & Biochem, Brighton BN1 9QJ, E Sussex, England

[3] Inst Super Tecn, CQFM, Dept Engn Quim & Biol, P-1049001 Lisbon, Portugal

来源：

ORGANOMETALLICS | 2008年 / 27卷 / 24期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/om800455h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The dimers [trans-[(neopentyl)Pd(mu-Cl)(I(t)lBu)](2), 2, and (cis-[(neopentyl)Pd(mu-Cl)(IPr)](2), 3 ((IBu)-Bu-t = 1,3-bis-tert-butylimidazol-2-ylidene, IPr = 1,3-bis-2,6-diidopropylimidazol-2-ylidene), have been synthesized from [Pd(neopentyl)(Cl)(1,5-COD)], and their reactivity toward a variety of nucleophiles has been evaluated. In particular, this study revealed that 2 can be readily cleaved by primary and secondary amines, affording stable transamination products, which are surprisingly resistant to deprotonation. Dimer 3 was subsequently used as a catalyst in a series of Buchwald-Hartwig amination reactions of aryl chlorides.

引用

页码：6411 / 6418

页数：8

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