117007-81-5Relevant articles and documents
An unexpected ring opening-ring closure reaction of 5-azido-4- formylpyrazole
Becher, Jan,Brondum, Klaus,Krake, Niels,Pluta, Krystian,Simonsen, Ole,Molina, Pedro,Begtrup, Mikael
, p. 541 - 542 (1988)
5-Chloro-4-formyl-1-methylpyrazoles give 1-azidomethyl-4-cyanopyrazoles on reaction with an excess of sodium azide in dimethyl sulphoxide (DMSO), as a result of a ring opening-ring closure reaction; the crystal structure of the azidomethylpyrazole has been determined.