نمایش نتایج جستجو برای
نویسنده: hossein eshghi
موضوع : شیمى
اعتبار علمی: ISI
موارد یافت شده: 142
1 - Nanomagnetically modified ferric hydrogen sulfate (NiFe2O4@SiO2-FHS): a reusable green catalyst for the synthesis of highly functionalized piperidine derivatives (چکیده)2 - Synthesis of [1,2,4]triazolo[4′′,3′′:1′,6′]pyrimido[4′,5′:3,4]pyridazino[1,6-d ] [1,2,4]triazine; a novel tetracyclic system (چکیده)
3 - Dipyrimido[4,5‑b:5,4‑e][1,4]thiazine: synthesis and their enzyme inhibitory activity assessment on soybean 15‑lipoxygenase (چکیده)
4 - Synthesis and Evaluation of a New Series of 3,5-bis ((5-bromo-6-methyl-2- t-aminopyrimidin-4-yl)thio)-4 H-1,2,4-triazol-4-amines and their Cyclized Products ‘Pyrimidinylthio Pyrimidotriazolothiadiazines’ as 15- Lipo-Oxygenase Inhibitors (چکیده)
5 - Deep eutectic solvent for multi-component reactions:a highly efficient and reusable acidic catalystfor synthesis of 2,4,5-triaryl-1H-imidazoles (چکیده)
6 - Preyssler heteropoly acid supported on silica coated NiFe2O4 nanoparticles for the catalytic synthesis of bis(dihydropyrimidinone)benzene and 3,4‐dihydropyrimidin‐2(1H)‐ones (چکیده)
7 - Fe(HSO4)3: An efficient, heterogeneous and reusable catalyst for C-alkylation of β-dicar bonyl compounds (چکیده)
8 - Synthesis and docking analysis of new heterocyclic system of tetrazolo[5',1':2,3][1,3,4]thiadiazepino [7,6-b]quinolines as aldose reductase inhibitors (چکیده)
9 - Nanomagnetic organiceinorganic hybrid (Fe@Si-Gu-Prs): a novel magnetically green catalyst for the synthesis of tetrahydropyridine derivatives at room temperature under solvent-free conditions (چکیده)
10 - Synthesis of the new heterocyclic system 7,8-dihydro-6H-benzotetrazolothiadiazine and derivatives (چکیده)
11 - Gold-gold sulfide nanoshell as a novel intensifier for antitumor effects of radiofrequency fields (چکیده)
12 - One-pot Solvent Free Synthesis of Some Tert-indolylmethane Amine Derivatives by Fe(HSO4)3 as a Recyclable Catalyst (چکیده)
13 - Fe(HSO4)3'SiO2 as an efficient, heterogeneous and recyclable catalyst for the synthesis of bis-(b-enaminones) and bis-(b-enamino esters) (چکیده)
14 - A novel imidazolium-based acidic ionic liquid as an efficient and reusable catalyst for the synthesis of 2-aryl-1H-phenanthro[9,10-d]imidazoles (چکیده)
15 - Synthesis of pyrimido[4′,5′:2,3][1,4]thiazepino[ 7,6-b]quinolines, derivatives of a novel ring system Abstract: Several derivatives of the novel pyrimido[4′,5′:2,3] (چکیده)
16 - Synthesis of novel heterocycle systems: 6,8-dimethyl-2-(methylsulfanyl-4-amino-substituted pyrimido[4′,5′:3,4]pyrazolo[1,5-a]pyrimidine and 9,11-dimethyl-5-(methylsulfanyl)pyrimido[2′,1′:5,1]pyrazolo[4,3-e][1,2,4]triazolo[4,3-c]pyrimidine (چکیده)
17 - Structure and vibrational analysis of methyl 3-amino-2-butenoate (چکیده)
18 - Theoretical investigation of the chemoselectivity and synchronously pyrazole ring formation mechanism from ethoxymethylenemalononitrile and hydrazine hydrate in the gas and solvent phases: DFT, meta-GGA studies and NBO analysis (چکیده)
19 - Synthesis, characterization and first application of keggin-type heteropoly acids supported on silica coated NiFe2O4 as novel magnetically catalysts for the synthesis of tetrahydropyridines (چکیده)
20 - 1,3-Dipolar cycloaddition reactions between ethyl diazoacetate and substituted alkynes: A density functional theory study (چکیده)
21 - Fluorometric assay of lipase by some new synthetized fluorescein aralkyl esters (چکیده)
22 - Naphthazarin, a simple model of important antitumor agents in a facile size-tunable synthesis of gold nanoparticles (چکیده)
23 - Synthesis, Characterization and Application of Cobalt Hydrogensulfate as a New Heterogeneous, Reusable and Efficient Catalyst in Onepot Synthesis of 14–aryl–14H–dibenzo[a,j]xanthenes and 1,8–dioxooctahydroxanthes (چکیده)
24 - Facile synthesis of some novel 6‑alkyl or aryl-7H-tetrazolo[5,1-b][1,3,4] thiadiazine (چکیده)
25 - Density functional theory study of the regio and stereoselectivity in 1,3-dipolar cycloddition reactions between N-methyl methylenenitrone and fluorinated dipolarophiles (چکیده)
26 - Nano-manganese hydrogen sulfate as a novel catalyst for the anti-diastereoselective Mannich reaction in water (چکیده)
27 - A New Versatile Route to the Synthesis of Novel Highly Substituted Series of 1,1´-Carbonyl-bispyrazole Derivatives (چکیده)
28 - Ferric hydrogen sulfate supported on silica‐coated nickel ferrite nanoparticles as new and green magnetically separable catalyst for 1,8‐dioxodecahydroacridine synthesis (چکیده)
29 - One-pot, procedure for the preparation of some thiazino[2,3-b]quinoxaline derivatives (چکیده)
30 - Fe(HSO4 )3 /SiO2: an efficient and heterogeneous catalyst for one-pot synthesis of 2-aryl-chromene-4-ones (flavanones) (چکیده)
31 - Synthesis of amino acid polyoxometalate hybrid nanotubes under solid-state chemical reaction at room temperature (چکیده)
32 - Nitrite ionic liquid as a new reagent for in situ synthesis of aryl iodides and azides (چکیده)
33 - A facile one-pot synthesis of functionalized fused benzochromene derivatives via intramolecular Wittig reactions (چکیده)
34 - Ionic liquids bis(2-N-methylimidazoliumethyl)ether dichloroiodate/dibromochlorate as an efficient halogenating reagent for the synthesis of a-haloketones (چکیده)
35 - Synthesis of novel bis(b-aminocarbonyl) compounds and some b-aminocarbonyls by catalyst-free multicomponent Mannich reactions (چکیده)
36 - Polyphosphoric acid supported on silica-coated NiFe2O4 nanoparticles: An efficient and magnetically-recoverable catalyst for N-formylation of amines (چکیده)
37 - Caesium iodide as an efficient catalyst for synthesis of N‑substituted azepines via tandem Michael addition and cyclisation under aqueous conditions (چکیده)
38 - Influence of different amino acid groups on the free radical scavenging capability of multi walled carbon nanotubes (چکیده)
39 - Synthesis of novel cyclophane-type crown ethers from 2-methylindole (چکیده)
40 - Pyrimido[5,4-e]tetrazolo[5,1-b][1,3,4]thiadiazines as a new heterocyclic system (چکیده)
41 - Conformational analysis, intramolecular hydrogen bonding, and vibrational assignment of 4,4-dimethyl-1-phenylpentane-1,3-dione (چکیده)
42 - Synthesis of heterocyclic compounds by reaction of dialkyl acetylenedicarboxylates with thiourea derivatives (چکیده)
43 - Synthesis, characterization and theoretical evaluations of HMDS promoted chemoselective O-alkylation of uracils (چکیده)
44 - Green and Selective Synthesis of N-Substituted Amides using Water Soluble Porphyrazinato Copper(II) Catalyst (چکیده)
45 - Dipyrromethane as a new organic reagent for the synthesis of gold nanoparticles: preparation and application (چکیده)
46 - Synthesis of 3,6-diaryl-1,4,5-thiadiazepines from substituted 2-thiocyano acetophenone and investigation of reaction mechanism (چکیده)
47 - Therapeutic Effects of Acoustic Cavitation in the Presence of Gold Nanoparticles on a Colon Tumor Model (چکیده)
48 - Structure and vibrational analysis of methyl 3-amino-2-butenoate (چکیده)
49 - efficient transport of lead(II) cations in natural water using a liquid membrane system with dicyclihexano-18-crown-6 as carrier (چکیده)
50 - The Effect of Cationic Charge Density Change on Transfection Efficiency of Polyethylenimine (چکیده)
51 - Protoporphyrin IX - Gold Nanoparticle Conjugates as an Efficient Photosensitizer in Cervical Cancer Therapy (چکیده)
52 - Electrochemical behavior of para-nitroaniline at a new synthetic crown ether-silver nanoparticle modified carbon paste electrode (چکیده)
53 - Diastereoselective three-component Mannich reaction catalyzed by silica-supported ferric hydrogensulfate (چکیده)
54 - Three new [XC(O)NH]P(O)[N(CH2-C6H5)2]2 phosphoric triamides (X = CClF2, 3-F-C6H4 and 3,5-F2-C6H3): a database analysis of tertiary N-atom geometry in compounds with a C(O)NHP(O)[N]2 core (چکیده)
55 - P2O5/SiO2 as an Efficient and Mild Catalyst for Trimethylsilylation of Alcohols Using Hexamethyldisilazane (چکیده)
56 - Efficient synthesis of novel 9H-xanthen-9-yl derivatives of bidentate heterocyclic nucleophiles by Fe(HSO4)3 as a catalyst (چکیده)
57 - Silica supported Fe(HSO4)3 as an efficient, heterogeneous and recyclable catalyst for synthesis of -enaminones and -enamino esters (چکیده)
58 - Phosphorus pentoxide supported on silica gel and alumina (P2O5/SiO2, P2O5/Al2O3) as useful catalysts in organic synthesis (چکیده)
59 - Synthesis of new indolyl crown ethers catalyzed with ferric hydrogensulfate (چکیده)
60 - Green synthesis of thiiranes from oxiranes under solvent- and catalystfree conditions (چکیده)
61 - Synthesis of novel benzo[ f ]chromene compounds catalyzed by ionic liquid (چکیده)
62 - One-pot Synthesis of Benzimidazoles and Benzothiazoles in the Presence of Fe(HSO4)3 as a New and Efficient Oxidant (چکیده)
63 - Regioselective synthesis of 2-[( E )-(benzo[ d ]thiazol-2(3 H )- ylidene)(cyano)methyl]thiazoles (چکیده)
64 - Polarographic study of mercury complexes with some recently synthesized benzo-substituted macrocyclic diamides in binary acetonitrile + water mixtures (چکیده)
65 - Detection of Clostridium tetani by fluorescent amplification based specific hybridization (چکیده)
66 - Efficient One-Pot Synthesis of 2-Amino-4H-chromenes Catalyzed by Ferric Hydrogen Sulfate and Zr-Based Catalysts of FI (چکیده)
67 - A Novel Nanosonosensitizer for Sonodynamic Therapy (چکیده)
68 - Synthesis and evaluation of antibacterial activity of new derivatives of pyrimido[4,5- e ][1,3,4]oxadiazine (چکیده)
69 - Experimental and Theoretical Studies on the Tautomerism in 2-Aminopyridines and 2(1H)-pyridinones: Synthesis of 2-Amino-4-aryl-3-cyano-6-(3,4-dimethoxyphenyl)pyridines and 4-Aryl-3-cyano-6-(3,4-dimethoxyphenyl)-2(1H)-pyridinones (چکیده)
70 - Synthesis of 14-Aryl- and Alkyl-14H-dibenzo[a, j]xanthenes Catalyzed by Silica-supported Ferric Hydrogensulfate (چکیده)
71 - Ferric Hydrogensulphate as a Recyclable Catalyst for The Synthesis of Fluorescein Derivatives (چکیده)
72 - Hydrothermal synthesis, experimental and theoretical characterization of a novelcocrystal compound in the 2:1 stoichiometric ratio containing 6-methyluraciland dipicolinic acid (چکیده)
73 - Highly Efficient Fe(HSO4)3-Catalyzed One-Pot Mannich-Type Reactions: Three Component Synthesis of -amino Carbonyl Compounds (چکیده)
74 - One-Pot Synthesis of Functionalized Tetrahydro-1,4-thiazepines (چکیده)
75 - Ionic Liquid, [bmim]Br, as An Efficient Promoting Medium for Synthesis of 2-Amino-3,5-dicarbonitrile-6-thiopyridines (چکیده)
76 - Design, synthesis and SAR studies of 4-allyoxyaniline amides as potent 15-lipoxygensae inhibitors (چکیده)
77 - Synthesis and Antibacterial Evaluations of New Pyridazino[4,3-e][1,3,4]oxadiazines (چکیده)
78 - Synthesis of fluorescein aromatic esters in the presence of P2O5/SiO2 as catalyst and their hydrolysis studies in the presence of lipase (چکیده)
79 - Efficient one-pot synthesis of 1,3-diaryl-3H-benzo[f]chromenes using ferric hydrogensulfate (چکیده)
80 - New Route for the Synthesis of Pyrimido[4 ,5 :4,5]thiazolo[3,2-a]benzimidazol-4(3H)-ones (چکیده)
81 - A novel PVC-membrane optical sensor for highly sensitive and selective determination of UO2 2+ ion based on a recently synthesized benzo-substituted macrocyclic diamide and dibenzoylmethane (چکیده)
82 - Synthesis, Characterization and Structure of DBU-hydrobromide-perbromide A Novel Oxidizing Agent for Selective Oxidation of Alcohols to Carbonyl Compounds (چکیده)
83 - TiO2 nanoparticles and Preyssler-type heteropoly acid modified nano-sized TiO2 A facile and efficient catalyst for the selective oxidation of sulfides to sulfonesand sulfoxides (چکیده)
84 - Selective and mild oxidation of sulfides to sulfoxides by H2O2 using DBUH-Br3 as catalyst (چکیده)
85 - The synthesis of highly fluorescent heterocyclic compounds: Pyrido[2,1:2,3]imidazo[4,5-b]quinoline-12-yl cyanides (چکیده)
86 - Synthesis of novel disulfide-bridged dilactam crown ethers (چکیده)
87 - Corrigendum to ‘‘Design and synthesis of 4-methoxyphenylacetic acid estersras 15-lipoxygenase inhibitors and SAR comparative studies of them”[Bioorg. Med. Chem. 17 (2009) 2327 (چکیده)
88 - Regioselective Synthesis of New 2-(E)-Cyano(thiazolidin-2-ylidene)thiazoles (چکیده)
89 - TiO2 nanoparticles: an efficient heterogeneous catalystfor synthesis of bis(indolyl)methanes under solvent-free conditions (چکیده)
90 - Fe(HSO4)3 and Fe(HSO4)3/DMSO as Efficient Heterogeneous, and Reusable Catalyst Systems for the Oxidative Coupling of Thiols (چکیده)
91 - Iodine-Catalyzed Synthesis of Spiroorthcarbonates under Neutral Conditions (چکیده)
92 - Synthesis of a new heterocyclic system-Fluoreno[1,2-d]imidazol-10-one (چکیده)
93 - Vicarious nucleophilic substitution in nitro derivatives of imidazo[1,2-a]pyridine (چکیده)
94 - Ferric hydrogensulfate as a recyclable catalyst for the synthesis of some new bis(indolyl)methane derivatives (چکیده)
95 - Microwave-assisted fast and efficient synthesis of some crown ethers (چکیده)
96 - A SILVER(I) PVC-MEMBRANE SENSOR BASED ON SYNTHESIZED DILAKTAM CROWN ETHER (چکیده)
97 - Ferric hydrogensulfate catalyzed aerobic oxidative coupling of 2-naphthols in water or under solvent free conditions (چکیده)
98 - 3,3,9,9-Tetramethyl-1,5,7,11-tetraoxaspiro[5.5]undecane as a reagent for protection of carbonyl compounds (چکیده)
99 - Synthesis of some new macrocyclic bis-sulfonamides by fast addition method (چکیده)
100 - Synthesis of some new 2-arylthieno[2,3-d]pyrimidin-4(3H)-one derivatives (چکیده)
101 - Facile Synthesis of 2-anilinopyrimido [4,5-e][1,3,4]-Thiadiazines (چکیده)
102 - Selective and convenient protection of aldehydes as azines under solvent-free conditions (چکیده)
103 - Fe(HSO4)3 as an inexpensive, eco-friendly, heterogeneous and reusable catalyst for acetal/ketal formation and their facile regeneration (چکیده)
104 - Selective monotetrahydropyranylation of symmetrical diols using P2O5/SiO2 under solvent-free conditions and their depyranylation (چکیده)
105 - Fe(HSO4)3: An efficient, heterogeneous and reusable catalyst for the synthesis of 14-aryl- or alkyl-14H-dibenzo[a,j]xanthenes (چکیده)
106 - Isolation of intermediates in the synthesis of thieno[2,3-d]pyrimidine-2, 4(1H,3H)-diones using microwave irradiation (چکیده)
107 - Methimazole-disulfide as an Anti-Thyroid Drug Metabolite Catalyzed the Highly Regioselective Conversion of Epoxides to Halohydrins with Elemental Halogens (چکیده)
108 - Efficient synthesis of dihydrazide crown ethers by fast addition method (چکیده)
109 - P2O5 / SiO2 Catalyzed One-Pot Synthesis of Amides from Ketones via Schmidt Reaction under Microwave Irradiation in Dry Media (چکیده)
110 - Ferric Hydrogensulfate Catalysed Schmidt Reaction of Ketones to Amides Under Solvent-Free Conditions (چکیده)
111 - Vibrational Assignment and Structure of Benzoylacetone: A Density Functional Theoretical Study (چکیده)
112 - Intramolecular hydrogen bonding in 2-nitromalonaldehyde: Infrared spectrum and quantum chemical calculations, (چکیده)
113 - Silica sulfuric acid as a reusable catalyst for the conversion of ketones into amides by a Schmidt reaction under solvent-free conditions (چکیده)
114 - P2O5 / SiO2 as an Efficient Reagent for the Preparation of Z-Aldoximes Under Solvent-Free Conditions (چکیده)
115 - Microwave-Assisted Efficient One-Pot Synthesis of Nitriles from Aldehydes in the Presence of the P2O5 / SiO2 in Solvent-Free Media (چکیده)
116 - P2O5 / SiO2 as an Efficient Reagent for Selective Deprotection of 1,1-Diacetates Under Solvent-Free Conditions (چکیده)
117 - Regioselective Synthesis of E-Oximes Catalyzed by Ferric Chloride under Solvent Free Conditions (چکیده)
118 - Zn(OAc)2 / Podand Catalyzed Ring Opening of Epoxides By Aromatic Amines under Solvent-Free Conditions (چکیده)
119 - Preparation of 1,5-Fused Tetrazoles under Solvent-Free Conditions (چکیده)
120 - Microwave-Assisted Cleavage of Epoxides with Amines in the Presence of the Catalytic Zn(OAc)2/1,7-Bis(2-Benzoic Acid)-1,4,7-Trioxaheptane :ZnBBATOH (چکیده)
121 - Efficient Synthesis of Macrocyclic Dilactam Crown Ethers by Fast Addition Method (چکیده)
122 - Phosphorus Pentoxide as an Efficient Catalyst for the Tetrahydropyranylation of Alcohols under Solvent-Free Conditions (چکیده)
123 - Phosphorous Pentoxide-Montmorillonite K-10 as Catalyst for the Preparation of 1, 1-Diacetates Under Solvent-Free Conditions (چکیده)
124 - P2O5 / SiO2 as a Mild and Efficient Reagent for Acylation of Alcohols, Phenols, and Amines, (چکیده)
125 - o-Phenylenediamine as a New Catalyst in the Highly Regioselective Conversion of Epoxides to Halohydrins with Elemental Halogens (چکیده)
126 - A Facile Synthesis of (S)-(-)- Propranolol (چکیده)
127 - Improvement of Selectivity in the Fries Rearrangement and Direct Acylation Reactions by Means of P2O5 / SiO2 Under Microwave Irradiation in Solvent-Free Media (چکیده)
128 - An Easy Method for the Generation of Amides from Ketones by A Beckmann Type Rearrangement Mediated by Microwave (چکیده)
129 - Differential Pulse Polarographic Study of Mercury Complexes with Some Benzo-Substituted Macrocyclic Diamides In Binary Nitromethane + Dimethylformamide Mixtures (چکیده)
130 - P2O5 / SiO2 as An Efficient Reagent For Esterification of Phenols In Dry Media (چکیده)
131 - A Novel and Efficient Synthesis of New Dixanthones (چکیده)
132 - Copper (II)-Selective Membrane Electrode Based on A Recently Synthesized Macrocyclic Diamides (چکیده)
133 - Strontium-Selective Membrane Electrodes Based on Some Recently Synthesized Benzo-Substituted Macrocyclic Diamides (چکیده)
134 - Zinc-Selective Membrane Potentiometric Sencor Based on A Recently Synthesized Benzo-Substituted Macrocyclic Diamides (چکیده)
135 - Electrocatalytic Reduction of Dioxygen at the Surface of Glassy Carbon Electrodes Modified By Some Anthraquinone Substituted Podands (چکیده)
136 - Mercury (II) – Ion Selective Electrode Based on Dibenzo Diazathia-18- Crown –6- dione (چکیده)
137 - A Convenient Synthesis of Azobenzo-Crown Ethers (چکیده)
138 - Crown Ethers As new Catalysts in the Highly Regioselective Halogenative Cleavage of Epoxides with Elemental Halogen (چکیده)
139 - A Convenient Synthesis of Macrocyclic Diamides (چکیده)
140 - Efficient Synthesis of 1,4-Dihydroxy-9 (10H)- Anthracenone (چکیده)
141 - Efficient Synthesis of Macrocyclic Diamides (چکیده)
142 - The Mechanism of Fries Rearrangement and Acylation Reaction in Polyphosphoric Acid (چکیده)
