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Licensed Unlicensed Requires Authentication Published by De Gruyter June 2, 2014

Studies with 2-Arylhydrazono-3-oxopropanaIs: A Novel Route to 4-Aroyl-2-aryl-1,2,3-triazoIes, 3-Substituted 4-Arylazopyrazoles, 2-Substituted Glyoxalonitrile and 3-Oxoalkanonitriles

  • Mervat Mohammed Abdel-Khalik , Samia Michel Agamy and Mohammed Hilmy Elnagdi EMAIL logo
From the journal Zeitschrift für Naturforschung B
https://doi.org/10.1515/znb-2000-1216

2-Arylhydrazono-3-oxopropanals 1 react with hydroxylamine hydrochloride to yield the corresponding oximes 3 that are cyclized into isoxazoles 9 on reflux in acetic anhydride and are converted into 2-arylhydrazono-3-oxonitriles (4) on treatment with pyridine. The reaction of 1 with hydrazines afforded dihydrazones 10 which were converted to arylazopyrazoles 11 when treated with pyridine, whereas treatment with an acidic reagent resulted in the formation of 3-aroyl-2-phenyl-l,2,3-triazoles 12.

Keywords: Enaminones; 3-Oxo-alkanonitriles; Arylazoazoles
Received: 2000-5-23
Published Online: 2014-6-2
Published in Print: 2000-12-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

From the journal
Zeitschrift für Naturforschung B
Zeitschrift für Naturforschung B
Volume 55 Issue 12

Journal and Issue

Articles in the same Issue

Wechselwirkungen in Molekülkristallen, 160 [1,2]. Kristallzüchtung und Strukturbestimmung der verschiedenartigen Polyphenyl-Kontaktionenmultipel [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2 / Interaction in Molecular Crystals, 160 [1, 2]. Crystallization and Structure Determination of the Different Polyphenyl Contact Ion Multiples [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2
Synthesis and Structure of the Substituted Lithium Benzyl [Li(tmeda)2]+[C(PMe2)(SiMe3)C6H3-3,5-Me2]-. The First Metal Phosphinomethanide Consisting of Solvent-Separated Ion Pairs
Optical Outer-Sphere Charge Transfer in Ion Pairs with Peroxoborate as Donor
Enantioselektive Gewinnung und Kristallstruktur des Ecstasy-Analogons N-Ethyl-3,4-methylendioxyamphetamin-HCl (MDE) und seiner beiden Hauptmetaboliten MDA und HME / Enantioselective Production and Crystal Structure of the Ecstasy Analogue N-Ethyl-3,4- methylenedioxyamphetamine-HCl (MDE) and its Major Metabolites MDA and HME
Synthesis, Crystal Structure and Magnetic Properties of a Novel GdIII -CuII Heterodinuclear Complex
Atomvolumen und Packungsdichte der Atome in metallischen Elementen Atomic Volume and Packing Density of Atoms in Metallic Elements
Properties of the Ternary (Dien)Pt(PMEA-N7) Complex Containing Diethylenetriamine (Dien) and the Antiviral 9-[2-(Phosphonomethoxy)ethyl]adenine (PMEA). Synthesis, Biological Screening, Acid-Base Behaviour, and Metal Ion-Binding in Aqueous Solution
Photochemical Synthesis and Identification of Tetracarbonyl-bis(olefin)metal(0) Complexes of Group VI B Elements
Structural and Spectroscopic Characterization of Two New Cu(II)-Dipeptide Complexes
Wechselwirkungen in Molekülkristallen, 163 [1, 2]. Einfluß der Alkalimetall-Reduktionspotentiale auf die Bildung ihrer Kontaktionenmultipel mit Tetracen- und Decacylen-Polyanionen / Interaction in Molecular Crystals, 163 [ 1,2]. The Influence of Alkaline Metal Reduction Potentials on the Formation of their Contaction Multiples with Tetracene and Decacyclene Polyanions
Reactivity of Cobalt(III) Amine-Thiolate Complexes with Terminal and Bridging Thiolate Functions towards Hydrogen Peroxide
Monosubstituierte Derivate des Halbsandwich-Komplexes Cp*Ta(CO)4 - Vergleich mit den analogen Vanadiumverbindungen Cp*V(CO)3L und Röntgenstrukturanalyse des γ-Picolin-Komplexes Cp*V(CO)3(NC5H4-Me(4)) / Monosubstituted Derivatives of the Halfsandwich Complex Cp*Ta(CO)4 - Comparison with the Analogous Vanadium Compounds Cp*V(CO)3L and X-Ray Structural Analysis of the γ-Picoline Complex Cp*V(CO)3(NC5H4-Me(4))
Formation of Methylchloroaluminium Alkanethiolates, MeAl(SR)Cl, and Dichloroaluminium Alkanethiolates, Cl2AlSR, from Methylaluminium Dichloride and Trimethylsilyl Alkanethiolates, Me3SiSR
Chemischer Transport intermetallischer Phasen III: Das System Co-Si / Chemical Vapour Transport of Intermetallic Phases III: The System Co -Si
Triterpenes from Mimusops elengi
Studies with 2-Arylhydrazono-3-oxopropanaIs: A Novel Route to 4-Aroyl-2-aryl-1,2,3-triazoIes, 3-Substituted 4-Arylazopyrazoles, 2-Substituted Glyoxalonitrile and 3-Oxoalkanonitriles
Furanoid and Furofuranoid Lignans from Daphne oleoides
Subject Index
Authors Index
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