Pyrazole Studies. VIII. Oxidation of 4-Alkylsubstituted 2-Pyrazolin-5-ones with Tertiary Butylhydroperoxide.
نویسندگان
چکیده
منابع مشابه
4-(4-Bromophenylhydrazono)-1-(5-bromopyrimidin-2-yl)-3-methyl-2-pyrazolin-5-one
The asymmetric unit of the title compound, C(14)H(10)Br(2)N(6)O, contains two crystallographically independent mol-ecules. The pyrazole ring of one mol-ecule makes dihedral angles of 22.0 (3) and 3.5 (3)° with the pyrimidine and benzene rings, respectively; the corresponding values in the other mol-ecule are 9.2 (3) and 2.1 (3)°, respectively. The mol-ecules are linked by N-H⋯O, C-H⋯N and C-H⋯B...
متن کامل1-[5-(2H-1,3-Benzodioxol-5-yl)-3-(4-methylphenyl)-2-pyrazolin-1-yl]ethanone
In the title compound, C19H18N2O3, the pyrazoline ring is close to being planar (r.m.s. deviation = 0.035 Å) and subtends dihedral angles of 2.11 (8) and 82.63 (8)° with the p-tolyl and benzene rings, respectively. In the crystal, C-H⋯O and C-H⋯N hydrogen bonds link the mol-ecules, forming a three-dimensional network. A weak C-H⋯π inter-action involving the benzene ring is also observed.
متن کامل5-(2-Chlorophenoxy)-1,3-dimethyl-1H-pyrazole-4-carbaldehyde oxime
In the title mol-ecule, C(12)H(12)ClN(3)O(2), the benzene and pyrazole rings are inclined to each other at a dihedral angle of 83.3 (3)°. In the crystal, mol-ecules are linked into [010] chains via O-H⋯N hydrogen bonds with the unsubstituted pyrazole N atom acting as the acceptor.
متن کامل1-(2,4-Dichlorophenyl)-5-(2-nitroanilino)-1H-pyrazole-4-carbonitrile
In the title compound, C(16)H(9)Cl(2)N(5)O(2), the folded mol-ecular conformation is characterized by a dihedral angle between the two benzene rings of 74.03 (5)°. An intra-molecular N-H⋯O hydrogen bond is observed between the H atom of the amide group and a nitro-group O atom. Inter-molecular C-H⋯O and N-H⋯N hydrogen bonds feature in the crystal packing.
متن کامل4-[1-Acetyl-3-(4-methoxyphenyl)-2-pyrazolin-5-yl]phenol
In the title compound, C(18)H(18)N(2)O(3), the dihedral angle formed by the benzene rings is 71.75 (4)°. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers by inter-molecular O-H⋯O hydrogen bonds and π-π stacking inter-actions with centroid-centroid distances of 3.5511 (6) Å.
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1954
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.08-1383