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Electrophilically Activated Nitroalkanes in Double Annulation of [1,2,4]Triazolo[4,3-a]quinolines and 1,3,4-Oxadiazole Rings.

ABSTRACT: Nitroalkanes activated with polyphosphoric acid could serve as efficient electrophiles in reactions with amines and hydrazines, enabling various cascade transformations toward heterocyclic systems. This strategy was developed for an innovative synthetic protocol employing simultaneous or sequential annulation of two different heterocyclic cores, affording [1,2,4]triazolo[4,3-a]quinolines with 1,3,4-oxadiazole substituents.

SUBMITTER: Aksenov AV

PROVIDER: S-EPMC8464891 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Synthesis, biological activity and molecular modeling study of novel 1,2,4-triazolo[4,3-b][1,2,4,5]tetrazines and 1,2,4-triazolo[4,3-b][1,2,4]triazines.

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Crystal structure of 6,9-dimethyl-7H-[1,2,4]triazolo[4,3-b][1,2,4]triazepin-8(9H)-one 0.40-hydrate.

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Ethyl 5-methyl-7-phenyl-1,2,4-triazolo[4,3-a]pyrimidine-6-carboxyl-ate.

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