نتایج جستجو برای: amidoalkyl naphthol

تعداد نتایج: 1651  

An  efficient  three-component  one-pot  synthesis  of 1-amidoalkyl-2-naphthols  from  2-naphthol, aldehydes, and acetamide using nano-SnO2as catalyst is described. The reactions were carried out at 80oC under water-solvent media. The structures of the compounds were characterized by IR, 1HNMR, 13C-NMR,  and  Mass  spectra  and  by  elemental  analysis.  The  advantages  of  the  effective meth...

Grafting of 3-aminopropyltriethoxysilane (APTS) on graphene oxide (GO) nanosheets followed by reaction with phosphotungstic acid (H3PW12O40, denoted as H3PW) gave a new functionalized GO which was characterized using FT-IR, FESEM, EDX, EDX elemental mapping and ICP-OES techniques. The catalytic activity of this nanomaterial containing phosphotungstic counter-anion H2PW12O40¯ (H2PW) which was de...

2016
Tarn C Johnson Stephen P Marsden

A convenient, one-pot, two-component synthesis of 2-(1-amidoalkyl)pyridines is reported, based upon the substitution of suitably-activated pyridine N-oxides by azlactone nucleophiles, followed by decarboxylative azlactone ring-opening. The synthesis obviates the need for precious metal catalysts to achieve a formal enolate arylation reaction, and constitutes a formally 'umpoled' approach to thi...

Amidoalkyl-2-naphthols as synthetic intermediates play an important role in medicinal chemistry due to their remarkable biological and many pharmacological properties. Owing to the versatile biological activities, industrial and synthetic applications of these compounds, introduction of an alternative methodology is urgent in synthetic organic chemistry. Low yield and harsh reaction conditions ...

2012
Kunio ESUMI Sayaka NAKAGAWA Tomokazu YOSHIMURA

The binary adsolubilization behaviors of 2-naphthol +biphenyl and 2-naphthol +1, 3-dichlorobenzene in a cationic fluorocarbon surfactant adsorbed layer formed on TiO2 have been investigated as a function of pH. In the binary adsolubilization of 2-naphthol+biphenyl, the adsolubilized amount of 2-naphthol increases gradually until pH 7 and then sharply with a further increase of pH, whereas the a...

Amidoalkyl-2-naphthols as synthetic intermediates play an important role in medicinal chemistry due to their remarkable biological and many pharmacological properties. Owing to the versatile biological activities, industrial and synthetic applications of these compounds, introduction of an alternative methodology is urgent in synthetic organic chemistry. Low yield and harsh reaction conditions ...

Journal: :iranian journal of catalysis 2015
rajesh singh renu bala robita duvedi sahil kumar

amidoalkyl-2-naphthols as synthetic intermediates play an important role in medicinal chemistry due to their remarkable biological and many pharmacological properties. owing to the versatile biological activities, industrial and synthetic applications of these compounds, introduction of an alternative methodology is urgent in synthetic organic chemistry. low yield and harsh reaction conditions ...

2012
N Pappayee

Fluorescence probes based on excited state proton transfer (ESPT) have been recently developed for microheterogeneous media. The ESPT behaviour of a series of substituted naphthols (4-chl oro-1-naphthol, 5-amino-1-naphthol , 4-methoxy1-naphthol, 7-methoxy-2-naphthol , 3-amino-2-naphthol, 6-bromo-2naphthol and 1-bromo-2-naphthol) is investigated in liposomes, using steady state and time resolved...

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