Two simple dyes D1 and D2 based on 4-nitro-α-cyanostilbene were conveniently synthesized from a one-step reaction. These dyes were prepared from the condensation of 4-carboxybenzaldehyde or 4-hydroxybenzaldehyde with 4-nitrobenzyl cyanide to afford 4-nitro-4′-carboxy-α-cyanostilbene (D1) and ...
The fluorescence decays of trans-4-dimethylamino-4′-cyanostilbene (DCS) and trans-4-azetidinyl-4′-cyanostilbene (ACS) in an unpolar (n-heptane) and a polar (acetonitrile) solvent are single exponential down to a time resolution of around 5 ps and dual fluorescence is not observed. The dipole m...
Ab initio complete active space self-consistent field (CASSCF) and the second order perturbation (MRMP2) calculations have been performed to examine the photochemical behavior of 4-dimethylamino,4′-cyanostilbene (DCS) in the low-lying excited states. The potential energy curves with respect to ...
We report the synthesis, characterization, and electrochemical properties of bis-PCBM dyad containing 4-nitro-α-cyanostilbene units for potential usage in efficient organic solar cells. The bis-PCBM dyad is fully characterized by NMR, UV–vis absorption, and electrochemical cyclic voltammetry. ...
A gram-negative bacterium designated as RTSB was isolated from a petroleum-contaminated soil competent of utilizing acenaphthene as the solitary source of carbon and energy. The strain RTSB was identified as a Sphingobacterium species based on the morphological, nutritional and biochemical featu...
In this study, a collection of 298 wild strains of lactic acid bacteria (LAB) isolated from raw goat milk cheeses, belonging to 8 genera and 24 species, was investigated for their ability to generate volatile compounds. Sensory evaluation showed that goat milk cultures of Leuconostoc and Lactoco...
Three new aromatic diester–dicarboxylic acids containing furan rings, namely, benzofuro[2,3-b]benzofuran-2,9-dicarboxyl-bis-phenyl ester-4,4′-dicarboxylic acid, benzofuro[2,3-b]benzofuran-2,9-dicarboxyl-bis-phenyl ester-3,3′-dicarboxylic acid and benzofuro[2,3-b]benzofuran-2,9-dicarboxyl-bis-...
Selective extraction of Ni(II) from base metals is a critical step in the direct nickel synergistic extraction process. Significant synergistic effect and preferential extraction of Ni(II) over Co(II) were observed by using the synergistic extractant containing dinonylnaphthalene sulfonic acid (...
Fatty acid binding protein 4 (FABP4) plays a critical role in metabolism and inflammatory processes and therefore is a potential therapeutic target for immunometabolic diseases such as diabetes and atherosclerosis. Herein, we reported the identification of naphthalene-1-sulfonamide derivatives a...
Lawsonia inermis (Lythraceae) known as henna is one of the most popular and ancient plants used in cosmetics and hair dying. It is cultivated for its leaves but other parts such as seeds, flowers, stem bark and roots are also used in traditional medicine for millennia. Henna tattoo paste also pr...
Infra-red OH stretching spectra of 2-methoxy-1-naphthoic (I), 1-methoxy-2-naphthoic (II) and 3-methoxy-2-naphthoic (III) acids were measured under conditions where dimeric association and solvent—solute hydrogen bonding could be neglected. From these spectra, together with their ultra-violet ...
Arylated naphthalenes were prepared by Suzuki–Miyaura cross-coupling reactions of methyl 4-bromo-3-(trifluoromethylsulfonyloxy)-2-naphthoate. The reactions proceeded with very good chemoselectivity in favor of the triflate group, due to additive electronic ortho electronic effects.
The chemical reactivity of 4,4‘-dichloro-2,2‘-bipyridine (bipy-Cl2) changes profoundly upon coordination to a [Ru]2+ center. When not coordinated to [Ru]2+, bipy-Cl2 is relatively unreactive toward nucleophiles; but when coordinated to [Ru]2+, the chlorine atoms become susceptible to nucleophi...
A highly stereocontrolled synthesis of furofuran lignans, (±)-Paulownin (1a) and (±)-Isogmelinol (1b) is described involving intramolecular radical cyclisation as a key step.
A highly stereocontrolled synthesis of (±)-paulownin (1a) and (±)-isogmelinol (1b) is reported involving intramolecular radical cyclisation reaction as a key step.
In a search for novel multifunctional anti-Alzheimer agents, a congeneric set of seventeen flavone-8-acrylamide derivatives (8a─q) were synthesized and evaluated for their cholinesterase inhibitory, antioxidant, neuroprotective and modulation of Aβ aggregation activities. The target compounds ...
The detection of high level of the neurotoxic and carcinogenic acrylamide in heat-treated foodstuffs in 2002 led to an intensive research effort. Among the parameters affecting the level of acrylamide in foods, the effect of antioxidants had not yet been elucidated satisfactorily. Several resear...
The relationship between antioxidants and acrylamide formation deserves investigation. Both positive and negative results were obtained. Antioxidants with different structures or functional groups can react with acrylamide precursors, reaction intermediates, or acrylamide itself, leading to eith...
The organic crystalline species (E)-2-cyano-3-(3-hydroxyphenyl)acrylamide has been synthesized by solid state reaction between 3-hydroxy benzaldehyde (HB) and 2-cyanoacetamide (CA). The molar ratio of HB and CA forming this new organic entity was found to be 1:1, established with the help of pha...
The vibrational frequencies of (E)-2-cyano-3-(3-hydroxyphenyl)acrylamide (HB-CA) in the ground state have been calculated using density functional method (B3LYP) with B3LYP/6-311++G(d,p) basis set. The analysis of natural bond orbital was also performed. The IR spectra were obtained and interpre...
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View