Tetrahedron p. 4901 - 4910 (1984)
Update date:2022-08-03
Topics:
Molina, P.
Tarraga, A
Serrano, C.
2,4,6-Triphenylpyrylium with thiosemicarbazide and thiocarbohydrazide, gives 2-pyrazolines 3a and 3b which undergo cyclization yielding pyrazolo<1,5-c>pyrimidine 5 and pyrazolo<2,3-d>-1,2,4-triazepine 7 derivatives, respectively.Reaction of 7 with phenacy
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Doi:10.1002/anie.199706211
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(1997)Doi:10.1039/a605827b
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(2021)