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کلمات کلیدی: 4H


موارد یافت شده: 27

1 - Synthesis of Fe3O4@SiO2@Pr-NH2@DAP as a magnetic recyclable nano-catalyst for efficient synthesis of pyranothiazolopyrimidines and 4H-pyrans under solvent-free condition (چکیده)
2 - Biomimetic hydrogenation of electron deficient olefins using in situ generated 2-arylbenzimidazoline: synthesis of novel 3-benzylbenzo[4,5]thiazolo[3,2-a]pyrimidin-4-ones (چکیده)
3 - One-pot, catalyst-free synthesis of novel spiro[indole-3,4′-pyrano[2′,3′:4,5]pyrimido [2,1-b][1,3]benzothiazole] derivatives (چکیده)
4 - An inorganic-organic hybrid material based on a Keggin-type polyoxometalate@Dysprosium as an effective and green catalyst in the synthesis of 2-amino-4H-chromenes via multicomponent reactions (چکیده)
5 - Horsetail plant (Equisetum arvense) and horsetail plant ash: application and comparison of their catalytic activities as novel and natural porous lewis acid catalysts for the one-pot green synthesis of 2-amino-4H-chromene derivatives under solvent-free conditions (چکیده)
6 - Ag3[PMo12O40]: An efficient and green catalyst for the synthesis of highly functionalized pyran‐annulated heterocycles via multicomponent reaction (چکیده)
7 - An efficient one-pot synthesis of highly functionalized benzylpyrazolyl pyrido[1,2-a]pyrimidine derivatives using CuFe2O4 nanoparticles under solvent-free conditions (چکیده)
8 - Synthesis and characterisation of new 3-methyl-6-[1-(pyrimidin-4-yl)ethyl]-5Hpyrimido[ 5,4-e][1,2,4]triazolo[3,4-b][1,3,4]thiadiazine derivatives (چکیده)
9 - Nanofibre Sepiolite Catalyzed Green and Rapid Synthesis of 2-Amino-4H-chromene Derivatives (چکیده)
10 - One-pot three component isocyanide-based reaction: Synthesis of novel tetracyclic fused furo[20,30:4,5]pyrimido[2,1-b][1,3] benzothiazole (چکیده)
11 - An unexpected diastereoselective synthesis of novel substituted pyridines via one-pot, four-component reaction (چکیده)
12 - Synthesis of 5,5-(ethane-1,2-diyl) bis (3-((5-bromo-6-methyl-2tertiaryaminopyrimidin-4-yl) thio)-4H-1,2,4-triazol-4-amines) and Their Novel bis-cyclized Products, 1,2-bis (pyrimido [5,4e] [1,2,4] triazolo [3,4-b] [1,3,4] thiadiazin-3-yl) ethane, as Potential Inhibitors of 15-Lipoxygenase (چکیده)
13 - N-bromosuccinimide (NBS)-promoted, threecomponent synthesis of a,b-unsaturated isoxazol-5(4H)- ones, and spectroscopic investigation and computational study of 3-methyl-4-(thiophen-2-ylmethylene)isoxazol- 5(4H)-one (چکیده)
14 - 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)
15 - A novel 4H–SiC MESFET with recessed gate and channel (چکیده)
16 - ZnO NANOPARTICLES: AN EFFICIENT NANOCATALYST FOR GREEN AND EXPEDITIOUS SYNTHESIS OF 4H-PYRAN DERIVATIVES AS BIOLOGICALLY IMPORTANT COMPOUNDS (چکیده)
17 - Biomass alkai-rich ash catalyzed one-pot synthesis of 2-amino-4H-pyrans and tetrahydro-4H-benzopyrans under solvent-free condition (چکیده)
18 - Synthesis of Novel Substituted 4H-furo[3,4-c]chromen-4-one derivatives (چکیده)
19 - IMPROVED SHORT CHANNEL EFFECTS IN 4H-SIC MOSFET WITH DUAL MATERIAL GATE STRUCTURE (چکیده)
20 - An Efficient Synthesis of Highly Functionalized 4H-Pyrano[3,2-d]isoxazoles via Isocyanide-Based Three-Component Reaction (چکیده)
21 - Decaaquabis(μ3-4-hydroxypyridine-2,6-dicarboxylato)bis(4-hydroxypyridine-2,6-dicarboxylato)tetramanganese(II) 3.34-hydrate: a new three-dimensional open metal-organic framework based on a tetranuclear MnII complex of chelidamic acid and undecameric stitching water clusters (چکیده)
22 - Efficient One-Pot Synthesis of 2-Amino-4H-chromenes Catalyzed by Ferric Hydrogen Sulfate and Zr-Based Catalysts of FI (چکیده)
23 - Synthesis of 14-Aryl- and Alkyl-14H-dibenzo[a, j]xanthenes Catalyzed by Silica-supported Ferric Hydrogensulfate (چکیده)
24 - Growth of MnCl2.4H2O crystals and measurement the exact percent of cobalt impurities in the crystal, using radioactive isotopes of 54MN,60Co,57Co and NMRON technique. (چکیده)
25 - محاسبه تحرک پذیری الکترونها در ساختارهای4H-sic و 6H-sic با استفاده از حل معادله بولتزمن به روش برگشت پذیر در حضور میدانهای الکتریکی ضعیف (چکیده)
26 - Fe(HSO4)3: An efficient, heterogeneous and reusable catalyst for the synthesis of 14-aryl- or alkyl-14H-dibenzo[a,j]xanthenes (چکیده)
27 - The measurement of hyperfine field of 60Co in MnCl2. 4H2O crystal by the method of nuclear orientati (چکیده)