Synthesis of pyrazolyl-2-pyrazolines by treatment of 3-(3-aryl-3- oxopropenyl)chromen-4-ones with hydrazine and their oxidation to bis(pyrazoles)

European Journal of Organic Chemistry

Volumn , Issue 22, 2004, Pages 4672-4679

  Lévai, Albert ^a   Silva, Artur M S ^b   Pinto, Diana C G A ^b   Cavaleiro, José A S ^b   Alkorta, Ibon ^c   Elguero, José ^c   Jekö, József ^d  

^a UNIVERSITY OF DEBRECEN   (Hungary)

^b UNIVERSITY OF AVEIRO   (Portugal)

^c INSTITUTO DE QUÍMICA MÉDICA   (Spain)

^d ICN Hungary   (Hungary)

Author keywords

4 Pyrazolyl 2 pyrazolines; B3LYP; Bispyrazoles; Chromones; GIAO; NMR spectroscopy

Indexed keywords

1 ACETYL 3 (4 BROMOPHENYL) 5 (3 CHROMONYL) 2 PYRAZOLINE; 1 ACETYL 3 (4 BROMOPHENYL) 5 [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL] 2 PYRAZOLINE; 1 ACETYL 3 (4 CHLOROPHENYL) 5 (3 CHROMONYL) 2 PYRAZOLINE; 1 ACETYL 3 (4 CHLOROPHENYL) 5 [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL] 2 PYRAZOLINE; 1 ACETYL 3 (4 FLUOROPHENYL) 5 [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL] 2 PYRAZOLINE; 1 ACETYL 5 (3 CHROMONYL) 3 (4 FLUOROPHENYL) 2 PYRAZOLINE; 1 ACETYL 5 (3 CHROMONYL) 3 (4 METHOXYPHENYL) 2 PYRAZOLINE; 1 ACETYL 5 (3 CHROMONYL) 3 (4 METHYLPHENYL) 2 PYRAZOLINE; 1 ACETYL 5 (3 CHROMONYL) 3 PHENYL 2 PYRAZOLINE; 1 ACETYL 5 [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL] 3 (1 NAPHTHYL) 2 PYRAZOLINE; 1 ACETYL 5 [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL] 3 (2 NAPHTHYL) 2 PYRAZOLINE; 1 ACETYL 5 [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL] 3 (4 METHOXYPHENYL) 4 PYRAZOLINE; 3(5) (4 BROMOPHENYL) 5(3) [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL]PYRAZOLE; 3(5) (4 CHLOROPHENYL) 5(3) [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL]PYRAZOLE; 3(5) (4 FLUOROPHENYL) 5(3) [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL]PYRAZOLE; 5(3) [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL] 3(5) (4 METHOXYPHENYL)PYRAZOLE; 5(3) [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL] 3(5) (4 METHYLPHENYL)PYRAZOLE; 5(3) [3 (2 HYDROXYPHENYL)PYRAZOL 4 YL] 3(5) PHENYLPYRAZOLE; ACETIC ACID; CHROMENE DERIVATIVE; HYDRAZINE; PYRAZOLE DERIVATIVE; PYRAZOLINE DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; CALCULATION; CARBON NUCLEAR MAGNETIC RESONANCE; CHEMICAL REACTION; CHEMICAL STRUCTURE; DEACYLATION; ENERGY; NUCLEAR MAGNETIC RESONANCE; OXIDATION; PROTON NUCLEAR MAGNETIC RESONANCE; REACTION ANALYSIS; STRUCTURE ANALYSIS; SYNTHESIS; THEORETICAL STUDY;

EID: 12344281353     PISSN: 1434193X     EISSN: None     Source Type: Journal    
DOI: 10.1002/ejoc.200400465     Document Type: Article

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