In the title compound, C(6)H(12)O(5), the cyclo-hexane ring adopts a chair conformation. The absolute configuration is not defined. However, the relative configuration can be assigned as 1R*,3R*,4S*,S*. In the crystal structure, mol-ecules are linked by strong inter-molecular O-H⋯O hydrogen bonds, producing a three-dimensional network.

In the title compound, C(20)H(26)N(2)O(4)S(2), the cyclo-hexane ring has a chair conformation. The two chiral C atoms are in S configurations. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains propagating in [001]. Weak inter-molecular C-H⋯O hydrogen bonds further stabilize the crystal packing.

The title compound, C30H26O4, contains an oxo-cyclo-hexane ring in a distorted half-chair configuration, with disorder of two C atoms in a 0.859 (4):0.141 (4) ratio. The dihedral angle between the mean planes of the two napthalene ring systems is 58.6 (8)°.

In the title compound, C(22)H(26)N(2)O(2), the meth-oxy and the benzyl-idene groups are essentially coplanar, and the cyclo-hexane ring has a chair conformation. The two halves of the mol-ecule are related by a twofold rotation. The crystal structure is stabilized only by van der Waals inter-actions.

In the title mol-ecule, C(19)H(18)Cl(2)O(4), the cyclo-hexane ring adopts a chair conformation. The furan ring is essentially planar and forms a dihedral angle of 82.1 (1)° with the benzene ring. In the crystal, weak C-H⋯O interactions are present.

In the title compound, C(14)H(18)ClNS, the 2,3-dihydro-1,3-thia-zole ring adopts an envelope with the S,N-bound C atom at the flap and the cyclo-hexane ring adopts a chair conformation. In the crystal, N-H⋯S hydrogen bonds with C(5) motifs connect the mol-ecules into chains parallel to the c axis.

The title compound, C(15)H(19)NO(4), contains one crystallographically independent mol-ecule in the asymmetric unit. The N-O-C-O torsion angle is 1.97 (9)°. The two pairs of vicinal H atoms that lie above or below the plane defined by the five-membered pyrrolidine-2,5-dione ring are an average of 6.57 (5)° from being eclipsed. The average absolute C-C-C-C torsion angle in the adamantane skeleto...

evaluation of pre-fixed biological tissues preparation methods for atr-ftir biospectroscopy fourier transform infrared (ftir) spectroscopy in atr (attenuated total reflection) mode is a powerful tool for studying biomedical samples, which can provide important structural information on the molecular composition. currently, formalin fixation and paraffin preservation (ffpp) is the preferred source ...

background : within the framework to control mosquitoes, ovicidal, larvicidal and pupicidal activity of annona senegalensis leaf extract and its 4 fractions against anopheles gambiae and culex quinquefasciatus were evaluated in the laboratory conditions. methods : ovicidal test was performed by submitting at least 100 eggs of mosquitoes to 125, 250, 500, 1000 and 2000 ppm concentrations, while ...

Environmental exposure to commercial hexane (n-hexane, 2-methylpentane, and 3-methylpentane) was tested in several work places in five shoe factories by taking three grap-air samples during the afternoon shift. Individual exposure ranges were 32-500 mg/m3 for n-hexane, 11-250 mg/m3 for 2-methylpentane, and 10-204 mg/m3 for 3-methylpentane. The metabolites of commercial hexane in the urine of 41...