Palladium-Catalyzed Cross-Coupling Reactions of Potassium Alkenyltrifluoroborates with Organic Halides in Aqueous Media†
E Alacid, C Najera
Index: Alacid, Emilio; Najera, Carmen Journal of Organic Chemistry, 2009 , vol. 74, # 6 p. 2321 - 2327
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Citation Number: 56
Abstract
Potassium vinyl and alkenyltrifluoroborates are cross-coupled with aryl and heteroaryl bromides using 1 mol% Pd loading of 4-hydroxyacetophenone oxime derived palladacycle or Pd (OAc) 2 as precatalysts, K2CO3 as base, and TBAB as additive and water reflux under conventional or microwave heating to afford styrenes, stilbenoids, and alkenylbenzenes. These borates can be cross-coupled diastereoselectively with allyl and benzyl chlorides ...
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