Search results for "3-Amino-1"

showing 2 items of 12 documents

Cyclecondensation of 3-amino-1,2,4-triazole with substituted methyl cinnamates

1999

The reaction of 3-amino-1,2,4-triazole (1) with substituted methyl cinnamates 2a-h leads selectively to the formation of 7-aryl-6,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-ones 3a-h. The structure eluci dation of the products is based on ir, 1H and 13C nmr measurements and X-ray diffraction.

chemistry.chemical_compoundchemistryOrganic ChemistryCinnamates3-Amino-124-triazoleCarbon-13 NMRMedicinal chemistryJournal of Heterocyclic Chemistry
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Gamma-Ray-Induced Structural Transformation of GQDs towards the Improvement of Their Optical Properties, Monitoring of Selected Toxic Compounds, and …

2022

Structural modification of different carbon-based nanomaterials is often necessary to improve their morphology and optical properties, particularly the incorporation of N-atoms in graphene quantum dots (GQDs). Here, a clean, simple, one-step, and eco-friendly method for N-doping of GQDs using gamma irradiation is reported. GQDs were irradiated in the presence of the different ethylenediamine (EDA) amounts (1 g, 5 g, and 10 g) and the highest % of N was detected in the presence of 10 g. N-doped GQDs emitted strong, blue photoluminescence (PL). Photoluminescence quantum yield was increased from 1.45, as obtained for non-irradiated dots, to 7.24% for those irradiated in the presence of 1 g of …

graphene quantum dots3-amino-124-triazolegamma-irradiationGeneral Chemical Engineeringgraphene quantum dots; N-doping; gamma-irradiation; photoluminescence; carbofuran; 3-amino-124-triazole; detection; antibacterial effectsdetectionGeneral Materials Sciencephotoluminescenceantibacterial effectsSettore CHIM/02 - Chimica FisicaN-dopingcarbofuranNanomaterials (Basel, Switzerland)
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