In the title compound, C(13)H(17)N(3)O(2), the mean plane of the cyclo-hexane ring forms a dihedral angle of 33.12 (5)° with the pyridine ring. The two O atoms are twisted away from each other, as indicated by the C-N-N-C torsion angle of -74.97 (9)°. In the crystal structure, mol-ecules are linked into a three-dimensional network by inter-molecular N-H⋯N, N-H⋯O and C-H⋯O hydrogen bonds. The st...

In the title mol-ecule, C(15)H(17)NO, the cyclo-hexane ring adopts a chair conformation. The cyano and methyl groups at position 1 have axial and equatorial orientations, respectively. The benzene ring has an equatorial orientation. A C-H⋯π inter-action involving the benzene ring is found in the crystal structure.

In the title mol-ecule, C(13)H(19)NO(3)S, the S atom has a distorted tetra-hedral geometry with an O-S-O bond angle of 120.39 (18)°. The cyclo-hexane ring has a chair conformation. In the crystal, mol-ecules are connected by inter-molecular N-H⋯O hydrogen bonds, forming zigzag hydrogen-bonded chains directed along the c axis.

In the racemic title compound, C(15)H(19)NO(3)S, the dihedral angle between the planes of the benzene ring and the O=S=O group is 56.92 (7)° and the cyclo-hexane ring adopts a chair conformation.

The 3,5-meth-oxy groups in the title compound, C(16)H(23)NO(4), are almost coplanar with the aromatic ring, whereas the 4-meth-oxy group is bent out of this plane. The three CH(3)-O-C-C torsion angles are -1.51 (18), 0.73 (19) and 75.33 (15)°. The cyclo-hexane ring adopts a chair conformation. In the crystal, mol-ecules are connected by inter-molecular N-H⋯O hydrogen bonds into chains running a...

1-Phenyltridecamethylbicyclo[2.2.2]octasilane (1) is prepared by the reaction of the corresponding 1-chlorotridecamethylbicyclo[2.2.2]octasilane with phenyllithium in the presence of N,N,N',N'-tetramethylethylenediamine and the molecular structure of is determined by X-ray crystallography. Phenyloligosilane shows dual fluorescence even in non-polar hexane though the TICT-like mechanism is not a...

BACKGROUND n-Hexane is a well-known neurotoxicant. Polyneuropathy due to occupational n-hexane exposure has been reported worldwide, however, our case is the first report in the Chinese herb industry. CASE PRESENTATION A 25-year-old Asian man experienced progressive weakness and numbness in his hands and feet after working as an operator in a Chinese medicine pharmaceutical plant for the manu...

This study was carried out to evaluate the Brine shrimp lethality (cytotoxicity), antiglycation, phytotoxicity, antiplatelet, antifungal, and antibacterial activities of Ajuga bracteosa. The n-hexane fraction of Ajuga bracteosa was investigated for various biological activities in vitro. Hexane extract showed promising phytotoxicity (100%) at the highest dose only. Interestingly, n-hexane fract...