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An efficient synthesis of Schiff bases containing benzimidazole moiety catalyzed by transition metal nitrates
A simple and efficient method has been developed for the synthesis of some novel Schiff bases via the reaction of aromatic aldehydes with 2-aminobenzimidazole by using catalytic amount ofExpand
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Zeolite catalyzed efficient synthesis of perimidines at room temperature
Arylperimidines, 3(a-l), were synthesized in good yields by cyclocondensation reaction of 1,8-diaminonaphthalene and aromatic aldehydes in the presence of NaY zeolite as a catalyst. The simpleExpand
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Tetrabutylammonium Bromide in Water as a Green Media for the Synthesis of Pyrano[2,3-d]pyrimidinone and Tetrahydrobenzo[b]pyran Derivatives.
Tetrabutylammonium bromide (TBAB) was used as a green catalyst for the synthesis of tetrahydrobenzo[b]pyran and pyrano[2,3-d]pyrimidinone derivatives in water as a solvent. Use of nontoxic reactionExpand
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Synthesis of some 2-oxo and 2-thioxo substituted pyrimidines using solvent-free conditions
A series of oxo- and thioxopyrimidines 4(a-m) were synthesized by one-pot three components cyclocondensation reaction of β-ketoester, aldehyde and urea/thiourea using benzyltriethylammonium chlorideExpand
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Simple Synthesis and Biological Evaluation of Some Benzimidazoles Using Sodium Hexafluroaluminate, Na 3 AlF 6 , as an Efficient Catalyst
Considerable attention has been focused on the synthesis of benzimidazoles due to having a broad spectrum of biological activities such as anti-parasitic, fungicidal, anti-thelemintic andExpand
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Synthesis of octahydroquinazolinone derivatives using silica sulfuric acid as an efficient catalyst
Octahydroquinazolinone derivatives were synthesized in moderate to high yields via one-pot three component Biginelli reaction of dimedone, urea or thiourea and corresponding aromatic aldehydes in theExpand
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Conversion of acids to benzimidazoles with transition metal/zeolites
Transition metal/Y zeolites were prepared using microwave solid state and aqueous solution ion exchange methods. The activity of these zeolites was investigated in a conversion of acids toExpand
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Sulfanilic acid-functionalized silica-coated magnetite nanoparticles as an efficient, reusable and magnetically separable catalyst for the solvent-free synthesis of 1-amido- and
Sulfanilic acid-functionalized silica-coated nano-Fe3O4 particles (MNPs–PhSO3H) have been prepared as a reusable heterogeneous acid catalyst using a facile process. The catalytic performance of thisExpand
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Synthesis, spectroscopy (vibrational, NMR and UV--vis) studies, HOMO--LUMO and NBO analysis of 8-for
Abstract In this work, 8-formyl-7-hydroxy-4-methylcoumarin has been synthesized and characterized by elemental analysis, FT-IR, FT Raman, 1H NMR, 13C NMR and UV–vis spectra. The molecular geometry,Expand
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