CN
Search Within
18344
应用筛选条件
关键词:'18344'
显示 1-30 共 36 条结果 关于 "18344" 范围 论文
Alfonso Pérez-Garrido et al.
Bioorganic & medicinal chemistry, 17(2), 896-904 (2008-12-06)
This paper reports a QSAR study for predicting the complexation of a large and heterogeneous variety of substances (233 organic compounds) with beta-cyclodextrins (beta-CDs). Several different theoretical molecular descriptors, calculated solely from the molecular structure of the compounds under investigation
Yu-Ying Dong et al.
Huan jing ke xue= Huanjing kexue, 27(8), 1643-1646 (2006-11-23)
The toxicity to Photobacterium phosphoreum of different mixture systems of sodium dodecyl sulfate (SDS) and three substituted aromatic compounds according to equiconcentration ratio of 1 : 1, as well as individual toxicity, were determined respectively. The joint toxicity was evaluated
Danilo Pérez-Pantoja et al.
Environmental microbiology, 17(1), 64-75 (2014-03-05)
Pseudomonas putida mt-2 encompasses two alternative and potentially conflicting routes for benzoate metabolism, one meta pathway encoded by xyl genes of the pWW0 plasmid and mastered by the Pm promoter and XylS, and one chromosomally encoded ortho pathway initiated by Pben
Nan Zhao et al.
Plant physiology and biochemistry : PPB, 48(4), 279-287 (2010-03-05)
Two benzenoid esters, methyl salicylate (MeSA) and methyl benzoate (MeBA), were detected from insect-damaged rice plants. By correlating metabolite production with gene expression analysis, five candidate genes encoding putative carboxyl methyltransferases were identified. Enzymatic assays with Escherichia coli-expressed recombinant proteins
S Ulland et al.
Chemical senses, 33(1), 35-46 (2007-09-12)
The cabbage moth, Mamestra brassicae L. (Lepidoptera, Noctuidae), is a polyphagous species that is often choosing plants of Brassica as hosts for oviposition. In the search for biologically relevant odorants used by these moths, gas chromatography linked to electrophysiological recordings
M Iqbal Choudhary et al.
Phytochemistry, 69(4), 1018-1023 (2008-01-08)
Two glycosides, 6'-O-(3,4-dihydroxy benzoyl)-beta-D-glucopyranosyl ester (1), and 4-O-beta-d-glucopyranoside-3-hydroxy methyl benzoate (2), along with five known compounds methyl benzoate (3), hypogallic acid (4), caffeic acid (5), paeoniflorin (6) and pikuroside (7) were isolated for the first time from a fresh water
Derek R Boyd et al.
Organic & biomolecular chemistry, 8(6), 1415-1423 (2010-03-06)
The cis-dihydrodiol metabolite from methyl benzoate has been used as a synthetic precursor of carba-beta-L-galactopyranose, carba-beta-L-talopyranose and carba-alpha-L-talopyranose. The structures and absolute configurations of these carbasugars were determined by a combination of NMR spectroscopy, stereochemical correlation and X-ray crystallography.
Don-Roger Parkinson et al.
Bulletin of environmental contamination and toxicology, 81(5), 494-497 (2008-09-09)
Methyl benzoate - as a biomarker for mold growth - was used as a specific target compound to indicate outgassed MVOC products from mold. Both real and surrogate samples were analyzed from a variety of matrices including: carpet, ceiling tiles
Joseph Moran et al.
The Journal of organic chemistry, 73(3), 1004-1007 (2007-12-29)
A photoinduced procedure for the intermolecular hydroamination of alkenes using azoles is described. This reaction occurs in modest to good yield for 6- and 7-membered cyclic alkenes. Upon irradiation at 254 nm in the presence of methyl benzoate and a
N Sundaraganesan et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 68(3), 771-777 (2007-04-17)
The Fourier transform Raman and Fourier transform infrared spectra of methyl benzoate (MB) were recorded in the liquid phase. The equilibrium geometry, harmonic vibrational frequencies, infrared intensities and Raman scattering activities, depolarization ratios, reduced masses were calculated by Hartree-Fock (HF)
A floral fragrance, methyl benzoate, is an efficient green pesticide
Feng Y and Zhang A
Scientific reports, 7 (2017)
Jun-ichiro Horiuchi et al.
Planta, 226(1), 1-10 (2007-01-12)
Previously it has been shown that the floral scent of snapdragon flowers consists of a relatively simple mixture of volatile organic compounds (VOCs). These compounds are thought to be involved in the attraction of pollinators; however, little is known about
Patricia Domínguez-Cuevas et al.
Journal of bacteriology, 190(9), 3118-3128 (2008-02-26)
XylS, an AraC family protein, activates transcription from the benzoate degradation pathway Pm promoter in the presence of a substrate effector such as 3-methylbenzoate (3MB). We developed a procedure to obtain XylS-enriched preparations which proved suitable to analyze its activation
Genetic analysis of natural variation in antirrhinum scent profiles identifies benzoic acid carboxymethyl transferase as the major locus controlling methyl benzoate synthesis
Ruiz-Hernandez V, et al.
Frontiers in Plant Science, 8, 27-27 (2017)
Gianfranco Cainelli et al.
Chemistry & biodiversity, 5(5), 811-829 (2008-05-22)
Novel 4-alkylidene-beta-lactams with a polyphenolic side chain were synthesized and evaluated as radical scavengers. We have undertaken a detailed study of the antioxidant activity in vitro with chemical and biological testing of the new beta-lactams and of the corresponding methyl
Silke Schlaubitz et al.
PloS one, 9(10), e110251-e110251 (2014-10-21)
The repair of bone defects is of particular interest for orthopedic, oral, maxillofacial, and dental surgery. Bone loss requiring reconstruction is conventionally addressed through bone grafting. Depending on the size and the location of the defect, this method has limits
Toshio Hongo et al.
Dental materials journal, 25(2), 298-302 (2006-08-19)
The purpose of this study was to clarify the stability of benzoyl peroxide (BPO) in some solvents. BPO was dissolved in acetone, acetonitrile (AcCN), 50% acetonitrile-50% distilled water (50% AcCN), ethyl alcohol (EtOH), and methyl alcohol (MeOH). Solutions containing BPO
Giovana Ceni et al.
Enzyme and microbial technology, 48(2), 169-174 (2011-11-25)
The aim of this work is to report the enzymatic transesterification production of 1-glyceryl benzoate under ultrasound irradiation, using a commercial immobilized lipase, Novozym 435. Firstly, a preliminary evaluation was carried out at 2, 4 and 6h, at constant temperature
Anna Klimek-Turek et al.
Molecules (Basel, Switzerland), 25(21) (2020-11-04)
In this manuscript, the retention of aromatic hydrocarbons with polar groups has been compared for systems with various nonpolar columns of the types from C3 to C18 and different mobile phases composed of methanol, acetonitrile, or tetrahydrofuran as modifiers. The
Megan E Oest et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 33(3), 334-342 (2014-11-20)
Late-onset fragility fractures are a common complication following radiotherapy for metastatic disease and soft tissue sarcomas. Using a murine hindlimb focal irradiation model (RTx), we quantified time-dependent changes in osteoclasts and mineral apposition rate (MAR). Mice received either a single
F M Amorim et al.
Parasitology, 140(1), 29-38 (2012-08-22)
Current treatments for different clinical forms of leishmaniasis are unsatisfactory, highly toxic and associated with increasing failure rates resulting from the emergence of resistant parasites. Leishmania (Viannia) braziliensis is the main aetiological agent of different clinical forms of American tegumentary
Derek R Boyd et al.
Organic & biomolecular chemistry, 6(7), 1251-1259 (2008-03-26)
A series of twelve benzoate esters was metabolised, by species of the Phellinus genus of wood-rotting fungi, to yield the corresponding benzyl alcohol derivatives and eight salicylates. The isolation of a stable oxepine metabolite, from methyl benzoate, allied to evidence
María Manchado-Rojo et al.
The Plant journal : for cell and molecular biology, 72(2), 294-307 (2012-06-20)
The transcriptional network topology of B function in Antirrhinum, required for petal and stamen development, is thought to rely on initial activation of transcription of DEFICIENS (DEF) and GLOBOSA (GLO), followed by a positive autoregulatory loop maintaining gene expression levels.
D Rohrbeck et al.
Plant biology (Stuttgart, Germany), 8(5), 615-626 (2006-06-07)
The emission of fragrances can qualitatively and quantitatively differ in different parts of flowers. A detailed analysis was initiated to localize the floral tissues and cells which contribute to scent synthesis in STEPHANOTIS FLORIBUNDA (Asclepiadaceae) and NICOTIANA SUAVEOLENS (Solanaceae). The
Chintada Nageswara Rao et al.
The Journal of organic chemistry, 77(20), 9199-9204 (2012-10-03)
The reaction of six substrates (diphenylacetylene, benzonitrile, methyl benzoate, phenylacetylene, naphthalene, and 1-chloro-4-ethylbenzene) with SmI(2) in the presence of MeOH or TFE was studied. The reactions were monitored under three different conditions: (a) irradiation, (b) irradiation in the presence of
Songbai Liu et al.
Chemistry and physics of lipids, 166, 18-25 (2012-12-25)
A highly sensitive method for quantification of phytosterols based on HPLC has been developed by derivatization with the benzoyl chromophore. Introduction of the chromophore, benzoyl group, to phytosterols via simple and inexpensive derivatization greatly improved the UV response at 254
Javier F Juárez et al.
Environmental microbiology, 15(1), 148-166 (2012-07-05)
The mbd cluster encoding genes of the 3-methylbenzoyl-CoA pathway involved in the anaerobic catabolism of 3-methylbenzoate and m-xylene was characterized for the first time in the denitrifying β-Proteobacterium Azoarcus sp. CIB. The mbdA gene product was identified as a 3-methylbenzoate-CoA
Yiqun Huang et al.
The journal of physical chemistry. A, 112(46), 11590-11597 (2008-10-24)
The blackbody infrared radiation induced dissociation of methyl benzoate (C8H8O2(+*)) radical cation was investigated by using a Fourier transfer ion cyclotron resonance mass spectrometer equipped with a resistively heated (wire temperatures of 400-1070 K) wire ion guide. We observed product
Ariya Akthakul et al.
Analytical chemistry, 82(15), 6487-6494 (2010-07-10)
We report a turn-on sensor framework with enhanced vapor sensitivity by increasing the sensor's response dynamic range via rational design of the sensor formulation. Using a fluorescent dye as the reporter, our approach begins by reducing sensor background fluorescence through
Brett A Johnson et al.
The Journal of comparative neurology, 518(10), 1617-1629 (2010-03-17)
Although it has been shown repeatedly that minimum response times in sensory systems can be quite short, organisms more often continue to respond to sensory stimuli over considerably longer periods of time. The continuing response to sensory stimulation may be
1/2