Merck
CN
Search Within

W507709

应用筛选条件
关键词:'W507709'
显示 1-27 共 27 条结果 关于 "W507709" 范围 论文
Antonio A Ceacero-Vega et al.
The journal of physical chemistry. A, 116(16), 4097-4107 (2012-03-28)
Relative kinetic techniques have been used to measure the rate coefficients for the reactions of oxygenated terpenes (menthol, borneol, fenchol, camphor, and fenchone) and cyclohexanol with hydroxyl radicals (OH) and chlorine atoms (Cl) at 298 ± 2 K and atmospheric
I M Isa et al.
Talanta, 87, 230-234 (2011-11-22)
A new cobalt(II) ion selective electrode based on palladium(II) dichloro acetylthiophene fenchone azine(I) has been developed. The best membrane composition is found to be 10:60:10:21.1 (I)/PVC/NaTPB/DOP (w/w). The electrode exhibits a Nerstian response in the range of 1.0 × 10(-1)-1.0
M Miyazawa et al.
Xenobiotica; the fate of foreign compounds in biological systems, 37(2), 194-204 (2007-05-09)
The in vitro metabolism of (-)-fenchone was examined in human liver microsomes and recombinant enzymes. The biotransformation of (-)-fenchone was investigated by gas chromatography-mass spectrometry. (-)-Fenchone was found to be oxidized to 6-exo-hydroxyfenchone, 6-endo-hydroxyfenchone and 10-hydroxyfenchone by human liver microsomal
Jeannette Nuessli et al.
International journal of biological macromolecules, 33(4-5), 227-234 (2003-11-11)
Amylose complexes were prepared, as lamellar single crystals and polycrystalline powders, from aqueous solutions by adding small flavor molecules. The morphology, crystal structure, and thermal properties of complexes with fenchone, menthone, and geraniol were determined using transmission electron microscopy, wide-angle
Hoi-Seon Lee
Journal of agricultural and food chemistry, 52(10), 2887-2889 (2004-05-13)
Acaricidal activities of components derived from Foeniculum vulgare fruit oil against Dermatophagoides farinae and Dermatophagoides pteronyssinus were examined using direct contact application and compared with that of the commercial repellent benzyl benzoate. The major biologically active constituent of Foeniculum fruit
Olga Tzakou et al.
Natural product communications, 4(8), 1103-1106 (2009-09-23)
The essential oils from leaves and inflorescences of L. cariensis Boiss. and L. stoechas L. subsp. stoechas collected in Greece were analyzed by GC and GC/MS. In the inflorescences and leaves essential oils of L. cariensis the most abundant metabolite
Chemical composition of the leaf and flower essential oils of Tunisian Lavandula dentata L.(Lamiaceae).
Touati B, et al.
Chemistry and Biodiversity, 8(8), 1560-1569 (2011)
Giovanna Longhi et al.
The journal of physical chemistry. A, 110(15), 4958-4968 (2006-04-14)
We report and discuss the infrared (IR) vibrational circular dichroism (VCD) spectra of the enantiomeric pairs of the olefin derivatives of fenchone (1,3,3-trimethyl-2-methylenebicyclo[2.2.1]heptane) and camphor (1,7,7-trimethyl-2-methylenebicyclo[2.2.1]heptane), respectively, together with those of the parent molecules. The VCD spectra were taken in
B Simándi et al.
Journal of agricultural and food chemistry, 47(4), 1635-1640 (1999-11-24)
Ground fennel seeds were extracted with supercritical carbon dioxide. Small-scale subsequent extractions of the same sample showed that the composition of volatile compounds was changed with the extension of extraction time and only principal volatile components (limonene, fenchone, methylchavicol, and
Biosynthesis of monoterpenes: conversion of the acyclic precursors geranyl pyrophosphate and neryl pyrophosphate to the rearranged monoterpenes fenchol and fenchone by a soluble enzyme preparation from fennel (Foeniculum vulgare).
R Croteau et al.
Archives of biochemistry and biophysics, 200(2), 524-533 (1980-04-01)
B Goldfuss et al.
The Journal of organic chemistry, 65(1), 77-82 (2000-05-18)
Three (-)-fenchyl alcohol derivatives, ¿(1R,2R,4S)-exo-(2-Ar)-1,3, 3-trimethylbicyclo[2.2.1] heptan-2-ol, Ar = o-anisyl (2), 2-N-methylimidazolyl (3), 2-N,N-dimethylbenzylamine (4)¿ were synthesized, characterized by X-ray analyses, and employed as precatalysts in diethyl zinc additions to benzaldehyde. Directions and relative degrees of enantioselectivities are rationalized by
D Vokou et al.
Journal of chemical ecology, 28(4), 755-768 (2002-05-31)
Lavandula stoechas, a native plant of Greece, is rich in essential oil and fenchone is its major constituent. We examined the effect of the essential oil and its main constituents on soil metabolism and microbial growth. Addition of the essential
D H Kim et al.
Pest management science, 57(3), 301-306 (2001-07-18)
The insecticidal activities of materials derived from the fruit of fennel, Foeniculum vulgare, against adults of Sitophilus oryzae, Callosobruchus chinensis and Lasioderma serricorne were examined using direct contact application and fumigation methods. The biologically active constituents of the Foeniculum fruits
M Băjan et al.
Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 115(2), 590-594 (2011-08-30)
For therapeutical purposes, fennel (Foeniculum vulgare Mill.), an important aromatic plant, is used for its expectorant, antispasmodic, carminative and diuretic properties. The chemical composition, especially of the volatile fraction, depends on the origin of the plant, and the ecological and
G Heth et al.
Experientia, 48(9), 897-902 (1992-09-15)
The behavior of mole rats (Spalax ehrenbergi) near pairs of enantiomeric compounds was examined in 901 two-choice experimental tests. Positioning of the nest and food store and the preferred location of the tested animal were used to assess attraction or
Yoshio Kasashima et al.
Journal of oleo science, 58(8), 421-427 (2009-07-09)
Intramolecular etherification of 1,3-diols was investigated using iodine as a catalyst under solvent-free conditions. The reaction proceeded to completion in a heterogeneous system. Five-membered cyclic ethers were obtained by intramolecular cyclization of 1,3-diols with dehydration. A propella ether (11-oxatricyclo[4.4.3.0(1,6)]tridecane) was
Fumigant and contact toxicities of monoterpenes to Sitophilus oryzae (L.) and Tribolium castaneum (Herbst) and their inhibitory effects on acetylcholinesterase activity.
Abdelgaleil SA, et al.
Journal of Chemical Ecology, 35(5), 518-525 (2009)
Hua-Zhen Qin et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 34(12), 1897-1899 (2012-04-17)
To study the components of volatile oil of Alpinia henryi. The volatile oil was extracted by steam distillation method,used gaseous phase-mass spectrum combination method (GC-MS) to analyze the components of volatile oil. 58 kinds of components were isolated, among them
Mitsuo Miyazawa et al.
Biological & pharmaceutical bulletin, 29(12), 2354-2358 (2006-12-05)
The in vitro metabolism of (+)-fenchone was examined in human liver microsomes and recombinant enzymes. Biotransformation of (+)-fenchone was investigated by gas chromatography-mass spectrometry. (+)-Fenchone was found to be oxidized to 6-exo-hydroxyfenchone, 6-endo-hydroxyfenchone and 10-hydroxyfenchone by human liver microsomal P450
Dirk W Lachenmeier et al.
Journal of agricultural and food chemistry, 56(9), 3073-3081 (2008-04-19)
Thirteen samples of authentic absinthe dating from the preban era (i.e., prior to 1915) were analyzed for parameters that were hypothesized as contributing to the toxicity of the spirit, including naturally occurring herbal essences (thujone, pinocamphone, fenchone), methanol, higher alcohols
Do-Hyoung Kim et al.
Journal of agricultural and food chemistry, 50(24), 6993-6996 (2002-11-14)
The repellent activity of materials derived from the methanol extract of fruits from Foeniculum vulgareagainst hungry Aedes aegypti females was examined using skin and patch tests and compared with that of the commercial N,N-diethyl-m-toluamide (deet) and (Z)-9-octadecenoic acid. The biologically
Santiago de la Moya Cerero et al.
The Journal of organic chemistry, 68(4), 1451-1458 (2003-02-15)
Valuable chiral sources of C(10)-substituted camphors and C(10)-substituted fenchones can be straightforwardly obtained by treatment of an appropriate, easily obtainable, camphor- or fenchone-derived 2-methylenenorbornan-1-ol with an electrophilic reagent. The process takes place via a tandem regioselective carbon-carbon double-bond addition/stereocontrolled Wagner-Meerwein
Dirk W Lachenmeier et al.
Journal of agricultural and food chemistry, 57(7), 2782-2785 (2009-03-05)
Research was conducted to ascertain whether analyses of vintage absinthe samples represent their original composition in the early 1900s. Absinthe stored in traditional green glass bottles and irradiated with ultraviolet light for up to 200 h exhibited unchanged composition. Samples
Mehmet Musa Ozcan et al.
Journal of medicinal food, 9(4), 552-561 (2007-01-05)
The chemical composition of the flower and unripe and ripe fruits from fennel (bitter) (Foeniculum vulgare ssp. piperitum) has been examined by gas chromatography and gas chromatography-mass spectrometry. The main identified components of the flower and unripe and ripe fruit
Boris Steuer et al.
Phytochemical analysis : PCA, 14(5), 285-289 (2003-10-01)
The aim of this study was to investigate the accuracy and transferability of near-infrared (NIR) calibrations for estimating the content and composition of the volatile fraction in fennel fruits (Foeniculum vulgare Miller) as an example of medicinal and spice plants.
Philip C Bulman Page et al.
The Journal of organic chemistry, 67(22), 7787-7796 (2002-10-26)
The first two stable enantiomerically pure chiral N-H oxaziridines, derived from camphor and fenchone, are shown to act as electrophilic sources of nitrogen upon reaction with various carbon nucleophiles. Nitrogen is transferred, together with the camphor/fenchone unit, when deprotonated esters
Swati Prasad et al.
Biochemistry, 41(49), 14499-14508 (2002-12-05)
The role of protein structural flexibility and substrate dynamics in catalysis by cytochrome P450 enzymes is an area of current interest. We have addressed these in cytochrome P450(cam) (P450(cam)) and its Y96A mutant with camphor and its related compounds using
1/1