available, inexpensive pyrazole molecule to conduct C–C cross-coupling reactions at room temperature via a radical pathway. Using this method, an aryldiazonium salt has been coupled to a wide range of arenes and heteroarenes including benzene, mesitylene, thiophene, furan, benzoxazole to result the corresponding biaryl products. The full reaction mechanism is elucidated along with the crystallographic
Reactivity of Aryldimesitylboranes under Suzuki−Miyaura Coupling Conditions
作者:Nan Wang、Zachary M. Hudson、Suning Wang
DOI:10.1021/om1006903
日期:2010.9.27
organic optoelectronic devices and chemical sensors. Furthermore, the Suzuki−Miyaura cross-coupling reaction is the most commonly used method for building the π skeletons of such conjugated materials. We have found that BMes2(Ar) can also be a highly active and effective coupling partner under typical Suzuki−Miyauracouplingconditions. For BMes2(p-Br-Ph), self-coupling leads to the formation of oligomers
K-10 montmorillonite-catalyzed solid phase diazotizations: environmentally benign coupling of diazonium salts with aromatic hydrocarbons to biaryls
作者:Garima Pandey、Béla Török
DOI:10.1039/c7gc02804k
日期:——
A new heterogeneous catalytic diazotization and subsequent coupling of the diazoniumsalts with aromatics for the synthesis of biaryls is described. The method involves the solid phase diazotization of anilines and the successive C-C bond formation of the diazonium salt with alkylbenzenes. Excellent yields were obtained for a broad range of anilines and aromatic nucleophiles. The reaction was carried