1H and 13C NMR study of 1-hydrazino-2,3-dihydro-1H-pyrazolo[1,2-a]pyridazine-5,8-diones and -1H-pyrazolo[1,2-b]phthalazine-5,10-diones and their ring-chain tautomerism

European Journal of Organic Chemistry

Volumn , Issue 13, 2002, Pages 2046-2053

  Sinkkonen, Jari ^a   Ovcharenko, Vladimir ^a   Zelenin, Kirill N ^b   Bezhan, Irina P ^b   Chakchir, Boris A ^c   Al Assar, Fatema ^c   Pihlaja, Kalevi ^a  

^a UNIVERSITY OF TURKU   (Finland)

^b S M KIROV MILITARY MEDICAL ACADEMY   (Russian Federation)

^c ST PETERSBURG STATE CHEMICAL PHARMACEUTICAL ACADEMY   (Russian Federation)

Author keywords

Hydrazides; Nitrogen heterocycles; NMR spectroscopy; Rotamerism; Tautomerism

Indexed keywords

1 HYDRAZINO 2,3 DIHYDRO 1H PYRAZOLO[1,2 A]PYRIDAZINE 5,8 DIONE DERIVATIVE; 1H PYRAZOLO[1,2 B]PHTHALAZINE 5,10 DIONE DERIVATIVE; 2,3 DIHYDRO 1H PYRAZOLO[1,2 B]PHTHLAZINE 5,10 DIONE DERIVATIVE; CARBON 13; CARBON HYDRAZIDE; DIMETHYL SULFOXIDE 2,3 DIHYDRO 1H PYRAZOLO[1,2 A]PYRIDAZINE 5,8 DIONE DERIVATIVE; HYDRAZIDE; HYDRAZINE DERIVATIVE; HYDROGEN; NITROGEN; PHTHALAZINE DERIVATIVE; PYRAZOLE DERIVATIVE; PYRIDAZINE DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL BINDING; CHEMICAL STRUCTURE; EQUILIBRIUM CONSTANT; ISOMERISM; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; STEREOCHEMISTRY; SYNTHESIS;

EID: 0036310264     PISSN: 1434193X     EISSN: None     Source Type: Journal    
DOI: 10.1002/1099-0690(200207)2002:13<2046::AID-EJOC2046>3.0.CO;2-C     Document Type: Article

References (17)