Iminophosphine–palladium(0) complexes as highly active catalysts in the Suzuki reaction. Synthesis of undecaaryl substituted corroles
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- 作者：Scrivanti ; Alberto ; Beghetto ; Valentina ; Matteoli ; Ugo ; Antonaroli ; Simonetta ; Marini ; Alessia ; et. al.
- 关键词：Suzuki reaction ; Iminophosphine complexes ; Palladium ; Boronic acid ; Corroles
- 刊名：Tetrahedron Letters
- 出版年：2004
- 出版时间：July 19, 2004
- 年：2004
- 卷：45
- 期：30
- 页码：5861-5864
- 全文大小：254 K
文摘
The iminophosphine–palladium(0) complex [Pd(dmfu)(P-N)] [dmfu=dimethyl fumarate; P-N=2-(PPh2)C6H4-1-CH
NC6H4-4-OMe] is a very efficient catalyst for the Suzuki coupling. In the reaction of aryl bromides with phenylboronic acid, turnover numbers up to ca. 200,000 are obtained at 110°C in 2h. Good rates are obtained also with the sterically hindered and electronically deactivated 2-bromo-1,3,5-trimethylbenzene. The complex is able to catalyze the exhaustive arylation of 2,3,7,8,12,13,17,18-octabromo-5,10,15-triphenylcorroleCu(III) to yield the corresponding undecaaryl substituted derivative.
NC6H4-4-OMe] is a very efficient catalyst for the Suzuki coupling. In the reaction of aryl bromides with phenylboronic acid, turnover numbers up to ca. 200,000 are obtained at 110°C in 2h. Good rates are obtained also with the sterically hindered and electronically deactivated 2-bromo-1,3,5-trimethylbenzene. The complex is able to catalyze the exhaustive arylation of 2,3,7,8,12,13,17,18-octabromo-5,10,15-triphenylcorroleCu(III) to yield the corresponding undecaaryl substituted derivative.