Rhodium-catalyzed mono- and divinylation of 1-phenylpyrazoles and related compounds via regioselective C-H bond cleavage
(Chemical Equation Presented) The selective 2-mono- and 2,6-divinylations of (N-containing heteroaryl)benzenes can be achieved effectively through rhodium-catalyzed oxidative coupling reactions with alkenes. The installation of two different vinyl groups