3-Ethyl-4-methyl-1H-pyrazol-2-ium-5-olate
نویسندگان
چکیده
The title compound, C(6)H(10)N(2)O, is a zwitterionic pyrazole derivative. The crystal packing is predominantly governed by a three-center iminium-amine N(+)-H⋯O(-)⋯H-N inter-action, leading to an undulating sheet-like structure lying parallel to (100).
منابع مشابه
Antioxidant and Antimicrobial Activity of 5-methyl-2-(5-methyl-1,3-diphenyl-1H-pyrazole-4-carbonyl)-2,4-dihydro-pyrazol-3-one
Cycloaddition of nitrile imines 4 generated in situ by the catalytic dehydrogenation of diphenyl hydrazones 3 using Chloramine-T (CAT) as oxidant in glacial acetic acid with enolic form of ethyl acetoacetate 5 afforded Ethyl 3-aryl-5-methyl-1-phenyl-1H-pyrazol-4-carboxylate 6 in 80% yield. The said pyrazoles 6 refluxed with 80% hydrazine hydrate using absolute alcohol as solvent for about 2-3 h...
متن کامل3-(2,3-Dimethyl-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazol-4-yl)sydnone
IN THE TITLE SYDNONE COMPOUND [SYSTEMATIC NAME: 3-(2,3-dimethyl-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazol-4-yl)-1,2,3-oxadiazol-3-ium-5-olate], C(13)H(12)N(4)O(3), the oxadiazole and pyrazole rings are essentially planar [maximum deviations = 0.006 (1) and 0.019 (1) Å, respectively] and are inclined at inter-planar angles of 37.84 (4) and 46.60 (4)°, respectively, with respect to the benzene ring. ...
متن کاملBis(4-benzoyl-3-methyl-1-phenyl-1H-pyrazol-5-olato-κ2 O,O′)bis(ethanol-κO)cobalt(II)
The title compound, [Co(C(17)H(13)N(2)O(2))(2)(C(2)H(5)OH)(2)], is a Co(II) complex with two 4-benzoyl-3-methyl-1-phenyl-1H-pyrazol-5-olate (BMPP) ligands and two coordinating ethanol mol-ecules. In the asymmetric unit, there are two half mol-ecules, with the Co(II) atoms located on inversion centres. The two cobalt complexes have slightly different geometries and in one, the ethyl group of the...
متن کاملBis(4-acetyl-3-methyl-1-phenyl-1H-pyrazol-5-olato-κ2 O,O′)bis(N,N-dimethylformamide-κO)nickel(II)
The title complex, [Ni(C(12)H(11)N(2)O(2))(2)(C(3)H(7)NO)(2)], lies on on an inversion center. The Ni(II) ion is coordinated in a slightly distorted octa-hedral coordination enviroment by four O atoms from two bis-chelating 4-acety-3-methyl-1-phenyl-1H-pyrazol-5-olate ligands in the equatorial plane and two O atoms from two N,N-dimethyl-formamide ligands in the axial sites. In the crystal struc...
متن کامل4-{[(1,3-Benzothiazolium-2-yl)hydrazono](phenyl)methyl}-3-methyl-1-phenyl-1H-pyrazol-5-olate monohydrate
The title compound, C(24)H(19)N(5)OS·H(2)O, was synthesized by the reaction of 4-benzoyl-3-methyl-1-phenyl-pyrazol-5-one and 2-hydrazino-1,3-benzothia-zole. Proton transfer leads to the formation of a zwitterionic structure and the mol-ecule exists in the enolate form. The pyrazolone ring makes dihedral angles of 35.4 (3), 69.7 (3) and 40.1 (3)° with the 1-phenyl, indirectly bound phenyl and be...
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