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کلمات کلیدی: pyran


موارد یافت شده: 36

1 - Nano silica extracted from horsetail plant as a natural silica support for the synthesis of H3PW12O40 immobilized on aminated magnetic nanoparticles (Fe3O4@SiO2-EP-NH-HPA): a novel and efficient heterogeneous nanocatalyst for the green one-pot synthesis of pyrano[2,3-c]pyrazole derivatives (چکیده)
2 - Investigation of the uncommon basic properties of [Ln(W5O18)2]9– (Ln = La, Ce, Nd, Gd, Tb) by changing central lanthanoids in the syntheses of pyrazolopyranopyrimidines (چکیده)
3 - A simple and efficient synthesis of novel pyranothiadiazolopyrimidine derivatives by three component reactions in solvent-free conditions (چکیده)
4 - Ag3 [PMo12 O40 ]: An efficient and green catalyst for the synthesis of highly functionalized pyran-annulated heterocycles via multicomponent reaction (چکیده)
5 - Catalyst-free green synthesis of tetrahydro-benzo[b]pyrans in magnetized water: experimental aspects and molecular dynamics simulation (چکیده)
6 - Catalyst-free method for the synthesis of pyranopyrazoles in magnetized water (چکیده)
7 - A facile and diastereoselective access to functionalised benzopyrano[3,4-a] quinolizines via a pyridine-based three-component reaction (چکیده)
8 - A catalyst-free and green method for synthesis of 9-substituted-9H-diuracilopyrans in magnetized water: experimental aspects and molecular dynamics simulation (چکیده)
9 - Convenient one-pot access to Novel Densely Functionalized Pyrano[2,3-d][1,3,4]Thiadiazolo[3,2- a]Pyrimidines via Three Component Reaction (چکیده)
10 - A New, Simple, Catalyst-free Method for the Synthesis of Pyrazolopyranopyrimidines in Magnetized Water (چکیده)
11 - Synthesis of Pyrano pyrazoles using a Magnetically Separable Modified Preyssler Hetero poly Acid (چکیده)
12 - Using magnetized water as a solvent for a green, catalyst-free, and efficient protocol for the synthesis of pyrano[2,3-c]pyrazoles and pyrano[40,30:5,6]pyrazolo [2,3-d]pyrimidines (چکیده)
13 - Silica-coated magnetic NiFe2O4 nanoparticlessupported H3PW12O40; synthesis, preparation, and application as an efficient, magnetic, green catalyst for one-pot synthesis of tetrahydrobenzo[b]pyran and pyrano[2,3-c]pyrazole derivatives (چکیده)
14 - Efficient synthesis of novel pyrano[2,3- d ]pyrido[1,2- a ]pyrimidine derivatives via isocyanide-based three-component reactions (چکیده)
15 - Efficient synthesis of novel spiro[indole-3,6'- pyrano[2,3-d][1,3]thiazolo[3,2-a]pyrimidine derivatives through an organobase-catalyzed, three- component reaction (چکیده)
16 - Efficient synthesis of novel tricyclic fused pyranothiazolopyrimidine derivatives via isocyanide-based three-component reactions (چکیده)
17 - A novel multicomponent Zr-catalyzed synthesis of functionalized pyrano[3,2-b]pyrrole derivatives (چکیده)
18 - ZnO NANOPARTICLES: AN EFFICIENT NANOCATALYST FOR GREEN AND EXPEDITIOUS SYNTHESIS OF 4H-PYRAN DERIVATIVES AS BIOLOGICALLY IMPORTANT COMPOUNDS (چکیده)
19 - Biomass alkai-rich ash catalyzed one-pot synthesis of 2-amino-4H-pyrans and tetrahydro-4H-benzopyrans under solvent-free condition (چکیده)
20 - Synthesis of 1H,7H,12bH-Pyrano[3’,4’: 5,6]pyrano[3,4-c][1]benzopyran-1- one via Domino Knoevenagel/Hetero-DielsAlder Reaction with Theoretical Investigations (چکیده)
21 - A New and Efficient One-pot Synthesis of Trialkyl 6-tert-Butylamino-2H-pyran-2-one-3,4,5-tricarboxylates (چکیده)
22 - A Facile One-Pot Synthesis of Functionalized 1,5-Dihydro-2H- [1]benzopyrano[2,3-b]pyridin-5-ones (چکیده)
23 - An Efficient Synthesis of Highly Functionalized 4H-Pyrano[3,2-d]isoxazoles via Isocyanide-Based Three-Component Reaction (چکیده)
24 - Ionic Liquid Promoted Efficient Three-Component Synthesis of 2-Thioxo-2H-Thiopyrans (چکیده)
25 - Evaluation of 6-amino-5-cyano-3-methyl-1,4-diphenyl-1,4-dihydropyrano[2,3-c]pyrazole as an orally drug in treatment of cadmium toxicity of rats as biological model (چکیده)
26 - Efficient one-pot synthesis of 1,3-diaryl-3H-benzo[f]chromenes using ferric hydrogensulfate (چکیده)
27 - IMMEDIATE AND HIGH YIELDING SOLVENT-FREE OXIDATION OF SILYL AND PYRANYL ETHERS TO THEIR CORRESPOUNDING CARBONYL COMPOUNDS WITH ZINC DICHROMATE TRIHYDRATE : ZnCr2O7·3H2O (چکیده)
28 - High yielding oxidative deprotections of silyl and pyranyl ethers to their corresponding carbonyl compounds with strontium manganate in the presence of aluminium chloride in solution and under net conditions (چکیده)
29 - High Yielding Oxidative Deprotection of Silyl and Pyranyl Ethers to Their Corresponding Carbonyl Compounds with Strontium Manganate in the Presence of Aluminium Chloride in Solution and Under Solvent-Free Conditions (چکیده)
30 - Triphenylphosphine/2,3-Dichloro-5,6-dicyanobenzoquinone (DDQ)/[nBu4N]OCN as a Useful System for the Efficient Conversion of Tetrahydropyranyl (THP) Ethers to the Corresponding Alkyl Isocyanates- (چکیده)
31 - Triphenylphosphine/2,3-Dichloro-5,6dicyanobenzoquinone in the Presence of n-Bu4NN3 Is a Useful System for Efficient Conversion of Tetrahydropyranyl (THP) Ethers to Their Corresponding Alkyl Azides - (چکیده)
32 - N,N’,N’’,N’’’-tetramethyltetra-2,3-pyridinoporphyrazinato copper(II) as a new catalyst in solvent-free tetrahydrotetrahydropyranylation(THP) of alcohols and phenols (چکیده)
33 - Highly selective conversion of 1◦ and 2◦ tetrahydropyranyethers to thiocyanates and 3◦ ones to isothiocyanates usingltriphenylphosphine/diethyl azodicarboxylate/NH4SCN (چکیده)
34 - Efficient Method for Tetrahydropyranylation of Phenols and Alcohols Using2,4,6-Trichloro[1,3,5]triazine (چکیده)
35 - Selective monotetrahydropyranylation of symmetrical diols using P2O5/SiO2 under solvent-free conditions and their depyranylation (چکیده)
36 - PHOSPHORUS PENTOXIDE AS AN EFFICIENT CATALYST FOR THE TETRAHYDROPYRANYLATION OF ALCOHOLS UNDER SOLVENT-FREE CONDITIONS (چکیده)