Dalton Transactions

Heck-type coupling vs. conjugate addition in phosphine–rhodium catalyzed reactions of aryl boronic acids with α, β-unsaturated carbonyl compounds: a systematic …

G Zou, J Guo, Z Wang, W Huang, J Tang

Index: Zou, Gang; Guo, Jianping; Wang, Zhiyong; Huang, Wen; Tang, Jie Dalton Transactions, 2007 , # 28 p. 3055 - 3064

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Citation Number: 19

Abstract

The competition between Heck-type coupling and conjugate addition in phosphine–rhodium catalyzed reactions of aryl boronic acids with α, β-unsaturated carbonyls has been systematically investigated in a toluene–H2O biphasic system. Aside from the intrinsic nature of rhodium and the enolization of carbonyls, the phosphine supporting ligand on rhodium, the ratio of aryl boronic acid to α, β-unsaturated carbonyl and the pH value of the ...