Jean‐Ho Chu, Chin‐Chau Chen, Ming‐Jung Wu
Sep 18, 2008
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0
Influential Citations
50
Citations
Journal
Organometallics
Abstract
A method for stoichiometric C−H activation of 3,5-diphenylisoxazole (1) using Pd(OAc)2 as a reagent in acetic acid leading to the isoxazole palladacycle I was described. Ortho aryl- and alkyl-substituted 3,5-diphenylisoxazoles 3a−f and 5a−i were synthesized by the reaction of I with various boronic acids 2a−f and 4a−i, respectively. p-Benzoquinone was found to be the best oxidant and 1,4-dioxane the best solvent for the transmetalation−reductive-elimination step of I with boronic acids.