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An Efficient and Reusable Palladium Catalyst Supported on a Rasta Resin for Suzuki–Miyaura Cross-Couplings

✍ Scribed by Carine Diebold; Jean-Michel Becht; Jinni Lu; Patrick H. Toy; Claude Le Drian

Publisher
John Wiley and Sons
Year
2012
Tongue
English
Weight
170 KB
Volume
2012
Category
Article
ISSN
1434-193X

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✦ Synopsis

Abstract

A short and efficient synthesis of a heterogeneous palladium catalyst supported on a rasta resin bearing diphenylphosphanyl ligands is reported. This catalyst was used successfully for Suzuki–Miyaura reactions of aryl bromides in the presence of only 0.25 milli‐equiv. of supported palladium. The catalyst was reused several times with no loss of efficiency, and the amount of palladium leached in the reaction medium is extremely low (< 1 % of the initial amount).

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✍ Yasuhiro Uozumi; Yutaka Matsuura; Takayasu Arakawa; Yoichi M. A. Yamada 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 391 KB 👁 2 views

## Abstract **You oughta use water**: Broad functional‐group (FG) tolerance was observed for the title coupling of aryl halides (X=Cl, Br, I) and aryl boronic acids to give biaryl compounds with up to 94 % __ee.__ The chiral imidazoindole phosphine–palladium catalyst supported on an amphiphilic pol