Preferential oxidative addition in Suzuki cross-coupling reactions across one fluorene unit

被引：57

作者：

Weber, Sven K. ^{[1
]}

Galbrecht, Frank ^{[1
]}

Scherf, Ullrich ^{[1
]}

机构：

[1] Berg Univ Wuppertal, Makromol Chem & Inst Polymertechnol, D-42097 Wuppertal, Germany

来源：

ORGANIC LETTERS | 2006年 / 8卷 / 18期

关键词：

D O I：

10.1021/ol061476b

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The Suzuki-type cross-coupling reaction of 2,7-dihalofluorenes with 1 equiv of arylboronic acid and Pd-2(dba)(3)/P(t-Bu-3) as a catalyst system is investigated. The exclusive formation of the diarylated coupling product demonstrates that "preferential oxidative addition" is also applicable to fluorene monomers due to a controlled intramolecular motion of the regenerated Pd(0) catalyst across the "large" distance between the 2- and the 7-position of one fluorene monomer.

引用

页码：4039 / 4041

页数：3

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