نتایج جستجو برای: reflux condensation method

تعداد نتایج: 1674407  

خاتمیان اسکوئی, معصومه, قنبرپور, رقیه,

In this research, ZeoliteX (Na&6 [(AI02)&6(Si02)u>6].264H20), has been prepared from 2onouz Kaolin. Then VOX·Zeolite has been obtained by treatment of ZeoliteX with vanadyl sulfate solution .The Salen ligand has synthesized by condensation reaction of salisylaldehyde and ethylendiamine. The encapsulated complex, VO (salen), in zeolite pores was prepared by reaction of salen with VOX·Zeolit...

Journal: :iranian journal of chemistry and chemical engineering 0
harikrishnan ramadoss research department of chemistry, bioactive organic molecule synthetic unit, c. abdul hakeem college, melvisharam - 632 509, tamil nadu, india hamzeh kiyani school of chemistry, damghan university, 36715-364, damghan, i.r. iran s sheik mansoor c.abdul hakeem college, melvisharam - 632 509. india

triphenyl phosphine(pph3), an efficient and reusable catalyst, catalysed the synthesis of 2-amino-3-cyano-6-methyl-4-aryl-4h-pyran-5-ethylcarboxylate derivatives by one-pot condensation of aromatic aldehydes, malononitrile and ethyl acetoacetate in etoh-h2o (1:1) at reflux conditions. the results show that aromatic aldehydes containing electron-donating groups or electron-withdrawing groups cou...

Journal: Journal of Nanoanalysis 2019

In this study, α-Fe2O3 nano-spheres are immobilized on the surface of manganese pyrophosphate(Mn2P2O7) support using forced hydrolysis and reflux condensation (FHRC) method. The synthesizedα-Fe2O3/Mn2P2O7 were characterized by FTIR, SEM, BET EDX, and XRD. The photocatalytic activity fromα-Fe2O3/Mn2P2O7 was investigated for the removal of toluene in aqueous solution by UV/H2O2 ...

The preparation of trans-dihydrofurans has been achieved by a one-pot condensation reaction of 4-bromophenacyl bromide, aromatic aldehydes and 5,5-dimethyl-1,3-cyclohexanedione using biosynthesized CuO nanoparticles under reflux conditions in ethanol. CuO nanoparticles (CuO NPs) were prepared using extractof leaves of Ajuga chamaecistus Subsp. Scoparia. The key advant...

The preparation of trans-dihydrofurans has been achieved by a one-pot condensation reaction of 4-bromophenacyl bromide, aromatic aldehydes and 5,5-dimethyl-1,3-cyclohexanedione using biosynthesized CuO nanoparticles under reflux conditions in ethanol. CuO nanoparticles (CuO NPs) were prepared using extractof leaves of Ajuga chamaecistus Subsp. Scoparia. The key advant...

2016
Ismail Warad Yasmin Al-Demeri Mohammmed Al-Nuri Mohammed Suleiman Anas Al-Ali Sameer Amereih

N-[(1E)-(3-Bromophenyl)methylene]-N-(2-piperidin-1-ylethyl)amine Schiff base was prepared in good yield and characterized by the reflux of equivalent amounts of 2-(piperidin-1-yl)ethanamine with 3-bromobenzaldehyde. The structure of the desired Schiff base was analyzed based on: elemental analysis, EI-MS, TG/DTG, UV-visible, FT-IR, 1H and 13C-NMR spectral analysis. The condensation reaction was...

2011
Sukanta Kamila Haribabu Ankati Kimberly Mendoza Edward R. Biehl

Pyridobenzimidazoles 6a-iwere synthesized in very good to excellent yields (81-96%) by the condensation of substituted N-phenyl-o-phenylenediamines 4a-d with indole/benzo[b]thiophene-3-aldehydes 5a-t inmethoxyethanol under reflux conditions. The diamines 4a-d were prepared byfirst treating 2-chloro-3-nitropyridine (1)with suitably substituted anilines 2a-d then reducing the resulting3-nitro-N-p...

2010
P Prasanna

The compound Pyrazole derivatives, is prepared from p – Amino benzoic acid and ethanol. Chalcone has been prepared by the condensation reaction of Ethyl-4-acetamido benzoate and different ten aldehydes. These chalcones are cyclized with hydrazine hydrate and glacial acetic acid under reflux condition give pyrazole derivatives. These compounds have been characterized by detailed spectral analysi...

Journal: :jundishapur journal of health sciences 0
masoomeh reyshahri islamic azad university, science and research in khuzestan, ahvaz, ir iran saeed malmasi department of engineering natural resources - environment, school of engineering, islamic azad university- north, tehran, ir iran saeed malmasi department of engineering natural resources - environment, school of engineering, islamic azad university- north, tehran, ir iran seyed ali jozi department of engineering natural resources - environment, school of engineering, islamic azad university- north, tehran, ir iran zahra anoosheh islamic azad university, science and research in khuzestan, ahvaz, ir iran

this research was undertaken to evaluate and determine the risk of gas fluids and leakage of persian gulf star refinery on the environment in bandar abbas. through collection and compilation of research findings, we attempted to identify and work on factors leading to environmental risks. the risk factors were identified by hazop team and the risk score was calculated by multiplying the probabi...

A series of arylidine barbituric acid derivatives was synthesized by Knoevenagel condensation reaction of aromatic aldehydes with barbituric acid or thiobarbituric acid using dodecylbenzenesulfonic acid as a Brønsted acid-surfactant catalyst in aqueous media. Regardless of the nature of the substitution (electron-donating and -withdrawing), all the reactions were completed within 15-65 min in w...

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