7189-00-6Relevant academic research and scientific papers
Rhodium-catalyzed addition-cyclization of hydrazines with alkynes: Pyrazole synthesis via unexpected C-N bond cleavage
Li, Deng Yuan,Mao, Xiao Feng,Chen, Hao Jie,Chen, Guo Rong,Liu, Pei Nian
supporting information, p. 3476 - 3479 (2014/07/21)
Rhodium-catalyzed addition-cyclization of hydrazines with alkynes has been achieved to afford highly substituted pyrazoles under mild conditions. The cascade reaction involves two transformations: addition of the C-N bond of hydrazines to alkynes via unex
Recyclable supported catalysts in microwave-assisted reactions: first Diels-Alder cycloaddition of a triazole ring
Díaz-Ortiz, ángel,de Cózar, Abel,Prieto, Pilar,de la Hoz, Antonio,Moreno, Andrés
, p. 8761 - 8764 (2007/10/03)
We describe here the first example in which a 1,2,3-triazole ring acts as a diene towards DMAD in microwave-assisted solvent-free Diels-Alder cycloadditions. The extrusion of a molecule of a nitrile affords pyrazole derivatives as the products. The yields
