Interaction of 3-pyridyland 3-(imidazo[1,2-a]pyridin-2-yl)isocoumarins with hydrazine

1Shablykina, OV, Krekhova, OF, Konovalenko, AS, 1Moskvina, VS, 1Khilya, VP
1Taras Shevchenko National University of Kyiv
Dopov. Nac. akad. nauk Ukr. 2018, 12:71-78
https://doi.org/10.15407/dopovidi2018.12.071
Section: Chemistry
Language: Ukrainian
Abstract: 

The products of 3-pyridyl- and 3-(imidazo[1,2-a]pyridin-2-yl)isocomarins' interaction with hydrazine are investigated. It has been shown that the recyclization of 1H-isochromen-1-one (isocoumarin) cycle to the 2,5-dihydro-1H-benzo[d][1,2]diazepine-1-one system occurs after the addition of a hydrazine molecule to the 3rd position of isocoumarin; and 4-hetaryl-2,5-dihydro-1H-benzo[d][1,2]diazepine-1-ones are recyclized into the corresponding 3-hetaryl-N-aminoisoquinoline-1(2H)-ones under acidic conditions.

Keywords: 3-hetaryl-1H-isochromen-1-ones, 3-hetaryl-N-amino-isoquinoline-1(2H)-ones, 3-hydrazinyl-3-hetarylisochroman-1-ones, 4-hetaryl-2;5-dihydro-1H-benzo[d][1;2]diazepine-1-ones, recyclization
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