1018817-73-6Relevant articles and documents
A straightforward synthesis of pyrazolines and pyrazoles: Palladium-catalyzed carbonylative vinylation-cyclocondensation reactions of aryl halides
Wu, Xiao-Feng,Neumann, Helfried,Beller, Matthias
experimental part, p. 4919 - 4924 (2011/10/31)
A novel consecutive one-pot synthesis of pyrazolines and pyrazoles starting from simple aryl halides, styrenes, carbon monoxide, and hydrazines has been established. Palladium-catalyzed carbonylative vinylation of aryl halides gave the corresponding chalcones, which are trapped in situ by addition of hydrazines.