Über das 1-Phenyl-5-methyl-pyrazol

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منابع مشابه

4-(3-Methyl-5-phenyl-1H-pyrazol-1-yl)benzene­sulfonamide

With respect to the planar five-membered ring of the title compound, C(16)H(15)N(3)O(2)S, the phenyl ring is aligned at 47.0 (1)° and the phenyl-ene ring at 37.6 (1)°. The amino group has the N atom in a pyramidal geometry; the group is a hydrogen-bond donor to the sulfonyl O atom of one mol-ecule and to the pyrazole N atom of another mol-ecule, resulting in the formation of a layer parallel to...

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Tris(5-methyl-3-phenyl-1H-pyrazol-1-yl)methane

The first crystal structure of a second-generation tris-(pyrazol-yl)methane, namely the title compound, C(31)H(28)N(6), is reported. The mol-ecule exhibits a helical conformation with an average twist of 35.1°. In addition, there are C-H⋯π inter-actions of 3.202 (2) Å between the pyrazole C-H group and neighbouring phenyl groups.

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4-[(3-Hy­droxy­anil­ino)­(phenyl)­methyl­idene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one

In the title compound, C(23)H(19)N(3)O(2), the dihedral angles formed by the pyrazolone ring with the three benzene rings are 30.91 (6), 60.96 (4) and 57.01 (4)°. The ligand is in the enamine-keto form and its structure is stabilized by an intra-molecular N-H⋯O hydrogen bond. In the crystal, O-H⋯N hydrogen bonds link mol-ecules into chains parallel to [01-1].

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4-[(Z)-(n-Butyl­amino)(phenyl)methyl­idene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one

The title compound, C(21)H(23)N(3)O, exists in an enamine-keto form with the amino group involved in an intra-molecular N-H⋯O hydrogen bond. The dihedral angle between the phenyl rings is 73.59 (6)°. The five-membered ring is nearly planar, the largest deviation being 0.0004 (7) Å, and makes dihedral angles of 4.81 (6) and 69.81 (5)° wth the phenyl rings. In the crystal, pairs of weak C-H⋯O int...

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4-[(5-Hydr­oxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)phenyl­meth­yl]-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one ethanol hemisolvate

The asymmetric unit of the title compound, C(27)H(24)N(4)O(2)·0.5C(2)H(6)O, comprises two crystallographically independent mol-ecules (A and B) with slightly different conformations, and one ethanol mol-ecule of crystallization. Intra-molecular C-H⋯O and O-H⋯O hydrogen bonds generate six- and eight-membered rings, producing S(6) and S(8) ring motifs, respectively. In mol-ecule A, one of the ben...

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ژورنال

عنوان ژورنال: Berichte der deutschen chemischen Gesellschaft

سال: 1907

ISSN: 0365-9496,1099-0682

DOI: 10.1002/cber.19070400180