The title compound, C(30)H(25)Cl(2)NO(3), was prepared by the reaction of 3-oxo-N,3-diphenyl-propane-thio-amide, 2,5-dichloro-benzaldehyde and 5,5-dimethyl-1,3-cyclo-hexa-nedione (1:1:1) in ethanol. The cyclohexene ring adopts a half-chair conformation. The crystal structure exhibits intra-molecular N-H⋯O and C-H⋯O, and inter-molecular C-H⋯O inter-actions.

2-Amino-5-acetyl-4-methyl-thiophene-3-carboxylic acid ethyl ester (1) and 5-acetyl-2-amino-4-methylthiophene-3-carbohydrazide (2) were synthesized and used as starting materials for the synthesis of new series of 1-(5-amino-4-(3,5-dimethyl-1H-pyrazole-1-carbonyl)-3-methylthiophen-2-yl) ethanone (3a), 1-(5-amino-4-(4-chloro-3,5-dimethyl-1H-pyrazole-1-carbonyl)-3-methylthiophen-2-yl) ethanone (3b...

one-pot multicomponent reaction between isatin, barbituric acid, and 6-amino-1,3-dimethyl uracil was investigated in the presence of sulfonic acid functionalized nanoporous silica (sba-pr-so3h) and resulted in the formation of spirooxindole dipyrimidines. spirooxindole unit is found in many natural products and biologically active molecules and 1,4-dihydropyridines are an important class of com...

In the title compound, C(14)H(13)Cl(2)NO, the 2,6-dichloro-anilino unit is roughly planar (r.m.s. deviation = 0.0298 Å) and makes a dihedral angle of 67.71 (4)° with the benzene ring containing the ethanol group. The C-C-O fragment is oriented at a dihedral angle of 64.94 (9)° with respect to its parent benzene ring. The molecular conformation is stabilised by a bifurcated N-H⋯(O,Cl) hydrogen b...

In the mol-ecule of the title compound, C(22)H(23)NO, there are two chiral atoms (R* for the C atom attached to the OH group and S* for the C atom attached to the phenyl ring). In the crystal, neighbouring mol-ecules are connected into a chain along the b axis by N-H⋯O hydrogen bonds.

The title compound, C(6)H(14)N(2)O, was synthesized by the reaction between 2-amino-2,3-dimethyl-butanonitrile and oil of vitriol (sulfuric acid). A racemic mixture of L- and R-2-amino-2,3-di-methyl-butanamide was characterized crystallographically. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the two enanti-omers into a three-dimensional network.

The title compound, C(11)H(13)N(5), is a Schiff base synthesized by the reaction of 4-amino-4H-1,2,4-triazole and 4-(dimethyl-amino)-benzaldehyde. The dihedral angle between the benzene and triazole rings is 43.09 (11)°. The crystal structure displays weak C-H⋯N inter-actions.

Regular crystals of the title compound, (C(2)H(8)N)(2)[Sn(CH(3))(2)Cl(4)], were obtained by reacting SnMe(2)Cl(2) with (CH(3))(2)NH·HCl in ethanol in a 1:1 ratio. The Sn atom lies on a center of symmetry and is six-coordinated. It has a distorted octahedral SnC(2)Cl(4) environment with the Cl atoms in cis positions. The Cl atoms are connected to dimethyl-ammonium cations through N-H⋯Cl hydrogen...

Common ethanol detection methods are not applicable to cell culture media and microdialysates due to interference with medium constituents including amino acids and pH indicators. We present a novel GC-MS method for the accurate and precise analysis of ethanol in cell cultures and microdialysates. The method is based on the carbonate-catalyzed extractive pentafluorobenzoylation of ethanol and d...