Highly efficient cyclopalladated ferrocenylimine catalyst for Suzuki cross-coupling reaction of 3-pyridylboronic pinacol ester with aryl halides

J Zhang, L Zhao, M Song, TCW Mak, Y Wu

Index: Zhang, Jinli; Zhao, Liang; Song, Maoping; Mak, Thomas C.W.; Wu, Yangjie Journal of Organometallic Chemistry, 2006 , vol. 691, # 6 p. 1301 - 1306

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Citation Number: 50

Abstract

The Suzuki cross-coupling reaction of 3-pyridylboronic pinacol ester with aryl iodides, bromides and chlorides was carried out in DMF/H2O (3/1, v/v) at 110° C in the presence of cyclopalladated ferrocenylimine I and K2CO3 or CsCO3 (1.0 equiv.) without the protection of inert gas. By using this method the synthesis of 3-pyridyl biaryl compounds could be readily achieved.

~84%

~69%

~71%

~70%

~73%

~85%

~75%

~84%

~29%

~90%

~87%

~95%

~64%

~33%

~83%

~94%

~77%

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