Chemistry of Heterocyclic Compounds p. 237 - 239 (1982)
Update date:2022-08-04
Topics:
Mityurina
Kharchenko
Cherkesova
The ability of the amide carbonyl group of the pyrazolone ring to participate in the heterocyclization of oxopropyl-5-pyrazolones under the influence of polyphosphoric acid (PPA) or phosphorus polysulfide in dioxane with the formation of 4H-pyrano[ 3,2-d]
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Doi:10.1016/S0040-4039(00)95640-5
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