The rotational spectrum of 2-methylcyclohexanone in the ground state has been observed in the frequency region from 5 to 18 GHz. Transitions having a-, b-, and c-dipole selection rules were all seen. The rotational constants of the ground states are A = 2875.2938(2), B = 1999.3393(1), and C = 12...

The physisorption of R-3-methylcyclohexanone on low and high Miller index Cu surfaces is studied with temperature programmed desorption (TPD) and density functional theory (DFT). The DFT calculations are performed with D2, vdW-optB86b, and vdW-optB88 dispersion corrected methods. The adsorption ...

New cobalt(II) and nickel(II) complexes of 4N-substituted thiosemicarbazones derivatives of 2-methylcyclohexanone of general composition ML2X2 (where M = Co(II) and Ni(II), X = Cl−, SCN− and ½ SO42-) have been prepared and characterized by elemental analysis, molar conductance, magnetic suscepti...

The present study experimentally demonstrated clathrate hydrate formation in the systems of (methane + water + each of the three methylcyclohexanone isomers, i.e., 2-methylcyclohexanone, 3-methylcyclohexanone, and 4-methylcyclohexanone) and measured the first data of the quadruple (water rich li...

A series of novel N-substituted arylidene, pyrazole, thioxopyrimidine and thiazolopyrimidine derivatives 2–7 were synthesized by initial reactions of 2-methyl-cyclohexanone with aromatic aldehydes to give 2,6-dibenzylidene-3-methylcyclohexanone 2. Some of the synthesized compounds were tested a...

Optical rotatory dispersion (ORD) spectra are reported for isolated and solvated (R)-3-methylcyclohexanone (R-3MCH) in 10 solvents, of wide polarity range, and over the spectral range 350–650 nm. Sample concentration effects on ORD spectra of R-3MCH were also recorded and investigated over wide...

The effects of 2,6-dichloro-4-nitroaniline (DCNA) and its primary mammalian metabolites 3,5-dichloro-4-aminophenol (DCAP) and 2,6-dichloro-p-phenylenediamine (DCPD) were studied on isolated rat liver mitochondria in vitro and ex vivo. DCNA and DCAP inhibited electron transport and uncoupled oxid...

The standard (p° = 0.1 MPa) molar enthalpies of formation of 2,5- and 2,6-dichloro-4-nitroanilines, in the gaseous phase, at T = 298.15 K, were derived from the combination of the values of the standard molar enthalpies of formation in the crystalline phase, at T = 298.15 K, and the standard mo...

The kinetic resolution of rac-3-(2-methylphenoxy)propane-1,2-diol (rac-1, Mephenesin) by sequential lipase-catalyzed transesterification with vinyl acetate in tetrahydrofuran/triethylamine in the presence of lipase Amano PS is described.

The stereoselective synthesis of (S)- and (R)-3-allyloxy-propane-1,2-diol has been accomplished in four steps from (RS)-3-allyloxy-propane-1,2-diol. Only one intermediate, namely 1-benzoyloxy-3-allyloxy-2-propanone has been prepared by a chemical reaction, that is, pyridinium chlorochromate oxid...

The reaction mechanism associated with the decomposition of three 2-alkoxypropionic acids (2-methoxy-, 2-ethoxy- and 2-isopropoxypropionic acid) in gas phase to form acetaldehyde, carbon monoxide, and the corresponding alcohol has been analyzed by a combination of experimental and theoretical st...

Seven phthalate esters (di-isobutyl phthalate (DIBP), di-n-butyl phthalate (DBP), benzylbutyl phthalate (BBP), di-(2-ethylhexyl) phthalate (DEHP), di-n-octyl phthalate (DNOP), di-isononyl phthalate (DINP) and di-isodecyl phthalate (DIDP)) were analyzed by pyrolyzer/thermal desorption-gas chromat...

Background/PurposeThis study aims to investigate what kinds of food products were contaminated by phthalates, mainly di-(2-ethylhexyl)phthalate (DEHP) and/or di-isononyl phthalate (DINP), during the 2011 phthalates incident in Taiwan, and whether the DEHP and/or DINP concentrations of some affec...

Six structurally oryzalide-related compounds, oryzadione (1), 2, 3, 4, 5 and 6, were isolated from a neutral fraction of the extract of healthy leaves using a bacterial leaf blight-resistant cultivar of a rice plant, “Norin-27”, as a group of antimicrobial substances. Their structures were det...

A long-retained cannabinoid metabolite has been detected in rat tissue after intravenous administration of Δ9-tetrahydrocannabinol (THC) and has been identified as a fatty acid conjugate of psychoactive 11-hydroxy-Δ9-tetrahydrocannabinol (11-OH-Δ9-THC) and palmitic acid. The objective of thes...

Glyceryl monooleate (GMO) is a polar lipid that can exist in various liquid crystalline phases in the presence of different amounts of water. It is regarded as a permeation enhancer due to its amphiphilic property. Various phases of GMO/solvent system containing sodium fluorescein were prepared ...

Photodynamic therapy (PDT), a potential therapy for cancer treatment, utilizes exogenously applied or endogenously formed photosensitizers, further activated by light in an appropriate wavelength and dose to induce cell death through free radical formation. 5-Aminolevulinic acid (5-ALA) is a pro...

Phase change latex (PCL) is a novel kind of phase change fluid with advantages both phase change emulsion (PCE) and latex. A series of oil/water PCLs were obtained by dissolving paraffin and ethylene propylene diene monomer (EPDM) in petroleum ether, followed by emulsifying in water. The effects...

Celecoxib (CXB) is a widely used anti-inflammatory drug that also acts as a chemopreventive agent against several types of cancer, including skin cancer. As the long-term oral administration of CXB has been associated with severe side effects, the skin delivery of this drug represents a promisin...

In order to prepare a nonlamellar lyotropic liquid crystalline structure, amphiphiles (PPG-Gly 340 and 1000) containing poly(propylene glycol)s of different molecular weights, 340 and 1000 respectively, as hydrophobic chains and glycerol as head groups were synthesized and investigated by optica...