Synthesis of the [MeAl(2-py)3]- Anion and Its Application as a Stable and Mild Pyridyl-Transfer Reagent (2-py = 2-Pyridyl)
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- 作者：Felipe Garcí ; a ; Alexander D. Hopkins ; Richard A. Kowenicki ; Mary McPartlin ; Michael C. Rogers ; and Dominic S. Wright
- 刊名：Organometallics
- 出版年：2004
- 出版时间：August 2, 2004
- 年：2004
- 卷：23
- 期：16
- 页码：3884 - 3890
- 全文大小：198K
- 年卷期：v.23,no.16(August 2, 2004)
- ISSN：1520-6041
文摘
The thermally stable tris(pyridyl) Al(III) complex [MeAl(2-py)3Li·THF] (1·THF), obtainedfrom the reaction of lithiopyridine [2-pyLi] with MeAlCl2 (3:1 molar equiv, respectively),functions as a pyridyl-transfer reagent, as exemplified by the reaction of 1·THF with CuCl(1:1 molar equiv), which gives the Cu(I) organometallic [{Cu(2-py)}3]
(2). The solid-statestructures of 1, the dimer [MeAl(2-py)3Li]2 ([1]2), and 2 are reported. Complex 2, which cannotbe obtained by direct reaction of [2-pyLi] with CuCl, has a polymeric structure in whichmacrocyclic [Cu(2-py)]3 ring units form infinite offset stacks associated by short Cu···Cuinteractions between three- and four-coordinate Cu(I) centers (2.762(3) Å).
(2). The solid-statestructures of 1, the dimer [MeAl(2-py)3Li]2 ([1]2), and 2 are reported. Complex 2, which cannotbe obtained by direct reaction of [2-pyLi] with CuCl, has a polymeric structure in whichmacrocyclic [Cu(2-py)]3 ring units form infinite offset stacks associated by short Cu···Cuinteractions between three- and four-coordinate Cu(I) centers (2.762(3) Å).