Palladium-catalyzed borylation of aryl halides or triflates with dialkoxyborane: A novel and facile synthetic route to arylboronates

…, T Oyama, S Watanabe, Y Masuda

Index: Murata, Miki; Oyama, Takashi; Watanabe, Shinji; Masuda, Yuzuru Journal of Organic Chemistry, 2000 , vol. 65, # 1 p. 164 - 168

Full Text: HTML

Citation Number: 392

Abstract

A direct borylation of aryl halides or triflates with dialkoxyborane was investigated. The coupling reaction of pinacolborane with aryl halides or triflates in the presence of a catalytic amount of PdCl2 (dppf) together with a base provided arylboronates in high yields. The product distributions were strongly dependent on the base employed, and the tertiary amine, especially Et3N, was effective for the selective formation of the boron-carbon bond. The ...