نتایج جستجو برای: benzyl
تعداد نتایج: 8220 فیلتر نتایج به سال:
This work explores thoroughly the reaction network of the partial oxidation of phenylmethanol at the TiO(2)-solvent interface under photocatalytic conditions by using a first-principles continuum solvation method. We demonstrate that the photocatalytic oxidation of phenylmethanol has a complex reaction network with dual pathways. The dimer pathway dominates the mechanism under aerobic condition...
A direct arylation to furnish diarylmethanes from benzyl alcohols was realized through Pd(PPh3)4-catalyzed Suzuki-Miyaura coupling via benzylic C-O activation in the absence of any additives. The arylation is compatible with various functional groups. This development provides an atom- and step-economic way to approach a diarylmethane scaffold under mild and environmentally benign conditions.
A series of novel N-benzyl substituted amides of 1H-indole-5-carboxylic acid were synthesized and evaluated for their ability to inhibit acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). The target compounds (6b-6e) displayed moderate potency to inhibit BuChE. One of the compounds tested, i.e., 1-benzylpiperidine amide of 1H-indole-5-carboxylic acid (6a) was a weak, non-selective i...
The chromatographic separation of the hexane soluble fraction of the methanol extract of the aerial parts of Solidago virga-aurea var. gigantea M(IQ*) (Compositae) led to the isolation of a new benzylbenzoate (1) together with four known benzylbenzoates (2-5). Their structures were determined as 2-methoxybenzyl-2-hydroxybenzoate (1), benzyl-2-hydroxy-6-methoxybenzoate (2), 2-methoxybenzyl-2,6-d...
The effect of fluorination on the conformational and hydrogen-bond (HB)-donating properties of a series of benzyl alcohols has been investigated experimentally by IR spectroscopy and theoretically with quantum chemical methods (ab initio (MP2) and DFT (MPWB1K)). It was found that o-fluorination generally resulted in an increase in the HB acidity of the hydroxyl group, whereas a decrease was obs...
Dibenzyl ethers and benzyl chloride can be obtained in moderate to excellent yields through Pd-catalysed reactions in hydrophobic ionic liquids using microwave or conventional heating.
در این پروژه مایع های یونی اسیدی تری اتیل آمونیوم هیدروژن سولفات و تری اتیل (بوتیل - 4- سولفونیل) آمونیوم تولوین سولفونات [et3n(ch2)4so3h]+[ots]- تهیه گردید. واکنش ید دار کردن الکل های بنزیلی توسّط مایع یونی اسیدی تری اتیل آمونیوم هیدروژن سولفات تحت شرایط ریزموج انجام شد که تحت این شرایط واکنش بسیار سریع تر از سایر شرایط انجام شد. هم چنین واکنش های محافظت الکل ها به صورت تتراهیدرو پیرانیل اتر به...
Due to production importance and potato minituber sleep, this research was carried out as factorial based on randomized complete blocks design with three replications at the Research Greenhouse of Ferdowsi University of Mashhad, Iran, in 2013. Treatments included foliar application of growth regulators at two physiological growth stages (stolen initiation and tuber initiation) and growth regula...
The title compound, C(18)H(14)FN(3)O(2)S(2), was synthesized by the reaction of 5-(4-fluoro-phen-yl)-N-(4-methoxy-benzyl-idene)-1,3,4-thia-diazol-2-amine and mercaptoacetic acid. The thia-zolidinone ring adopts a twist conformation. The 4-methoxy-phenyl ring is almost perpendicular to the thia-diazole ring, making a dihedral angle of 88.4 (3)°. The 4-fluoro-phenyl ring is nearly coplanar with t...
A series of S-benzyl aryl thiourea were condensed with o-Methoxy phenyl isocyanate to yield respective isothiobiuret derivatives. The newly synthesized compounds were characterized by (1)H-NMR, IR, and Mass Spectral studies and tested for biological activities.
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