Crystals of the title compound, C(12)H(14)N(4)S, were obtained from a condensation reaction of 4-amino-3-ethyl-1H-1,2,4-triazole-5(4H)-thione and 2-methyl-benzaldehyde. In the mol-ecular structure, there is a short N=C double bond [1.255 (2) Å], and the benzene and triazole rings are located on opposite sites of this double bond. The two rings are approximately parallel to each other, the dihed...

In the mol-ecule of the title compound, C(11)H(14)N(2)O(3), the dihedral angle between the benzene ring and the hydrazinecarboxyl-ate mean plane is 3.65 (12)°. Intra-molecular C-H⋯N and O-H⋯N hydrogen bonds result in the formation of a nearly planar six-membered ring, which is oriented at a dihedral angle of 2.38 (3)° with respect to the benzene ring, and a five-membered ring having an envelope...

The title mol-ecule, C(14)H(11)ClN(4)O(4), is in an E configuration and is twisted with the dihedral angle between the two benzene rings being 38.48 (8)°. The ethyl-idenehydrazine plane makes dihedral angles of 6.03 (10) and 44.04 (11)°, respectively, with the dinitro- and chloro-substituted benzene rings. The two nitro groups are essentially coplanar with the bound benzene ring, making dihedra...

In the structure of the title mol-ecular salt, C10H18N2 (2+)·2NO3 (-), the dinitrate salt of 4-(N,N-di-ethyl-amino)-aniline, the two ethyl groups lie almost perpendicular to the plane of the benzene ring [the ring-to-ethyl C-C-N-C torsion angles are -59.5 (2) and 67.5 (3)°]. The aminium groups of the cation form inter-species N-H⋯O hydrogen bonds with the nitro O-atom acceptors of both anions, ...

In this study, the bioactive compounds present in the ethyl acetate extracts of two different Streptomyces strains isolated from vermicast (earthworm fecal pellets) were investigated using Gas Chromatography and Mass Spectrometry (GC-MS). GC-MS analysis showed the presence of 12 and 9 bioactive compounds in AS1 and AS3 respectively. GC-MS analysis of AS1extract revealed the presence of major bi...

We found that the Fischer indole synthesis of ethyl pyruvate 2-methoxyphenylhydrazone (5) with HCl/EtOH gave an abnormal product, ethyl 6-chloroindole-2-carboxylate (7), as the main product, with a smaller amount of ethyl 7-methoxyindole-2-carboxylate (6) as the normal product. This abnormal reaction was the result of a cyclization on the side with the substituent (methoxy group) of a benzene r...

The title compound, C(26)H(25)Cl(3)N(6)O(4), was prepared by the reaction of (Z)-ethyl 3-amino-3-(4-chloro-phen-yl)-2-cyano-acrylate and 4-chloro-3-ethyl-1-methyl-1H-pyrazole-5-carbonyl chloride. The dihedral angles between the chloro-benzene and the two pyrazole rings are 59.8 (2) and 33.3 (2)°. The two pyrazole rings are oriented to each other at a dihedral angle of 84.7 (2)°. The crystal pac...

THE STRUCTURE OF THE TITLE COMPOUND [SYSTEMATIC NAME: (4-chloro-phen-yl)(2,4,6-trimethyl-phen-yl)methanone], C(19)H(21)ClO, has been redetermined at 100 K. The redetermination is of significantly higher precision than the previous structure determination at 133 K and reveals disorder of the one of the o-ethyl groups [occupancy factors = 0.77 (1) and 0.23 (1)] that was not identified in the prev...

The title compound, C40H41NO8, is a product of the reduction of the cyclic carbonyl group of the γ-piperidone subunit of the aza-14-crown-4 ether with subsequent re-esterification of its dimethyl butenoate substituent into a monoethyl monomethyl group. The aza-crown macrocycle exhibits a bowl conformation with a dihedral angle of 70.82 (5)° between the benzene rings fused to it. The piperidine ...