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36 results for “Microwave synthesis”
Data and code for figures: Ultralow-Noise Photonic Microwave Synthesis using a Soliton Microcomb-based Transfer Oscillator
<p>This repository contains the data and code for the paper "Ultralow-Noise Photonic Microwave Synthesis using a Soliton Microcomb-based Transfer Oscillator".</p>
Report of microwave oven for synthesis of N/TiO2 photocatalysts
<p>This file contains reports created by the microwave oven during the synthesis of N/TiO2 photocatalysts, in which the temperature, inner pressure of the reaction vessel, and energy delivered by the equipment are controlled over time. </p>
Dataset: Tailoring the Magnetic and Structural Properties of Manganese/Zinc Doped Iron Oxide Nanoparticles through Microwaves-Assisted Polyol Synthesis
<p>Data set</p>
Data for Rapid microwave-assisted hydrothermal in situ synthesis of nano-ZnS/kaolinite nanocomposite: a non-toxic photocatalyst active under UV and sunlight
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Data from: Microwave-assisted synthesis of high thermal stability and colorless polyimides containing pyridine
A novel aromatic diamine containing pyridyl side group, 4-pyridine-4,4-bis(3,5-dimethyl-5-aminophenyl)methane (PyDPM), was successfully synthesized via electrophilic substitution reaction. The polyimides (PIs) containing pyridine were obtained via the microwave-assisted one-step polycondensation of the PyDPM with pyromellitic dianhydride (PMDA), 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA), 3,3',4,4'-diphenylether tetracarboxylic dianhydride (ODPA) and 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA). Contrarily to the reported similar PIs, these PIs exhibit much higher thermal stability or heat resistance, i.e. high glass transition temperatures (Tgs) in the range of 358-473 °C, and the decomposition temperatures at 5% weight loss were over 476 °C under nitrogen. They can afford flexible and strong films with tensile strength of 82.1-93.3 MPa, elongation at break of 3.7%-15.2%, and Young's modulus of 3.3-3.8 GPa. Furthermore, The PI films exhibit good optical transparency with the cutoff wavelength at 313-366 nm and transmittance higher than 73% at 450 nm. The excellent thermal and optical transmittance can be attributed to synthesis method and the introduction of pyridine rings and ortho-methyl groups. The inherent viscosities of PIs via one-step method were found to be 0.58-1.12 dL g−1 in DMAc, much higher than those via two-step method. These results indicate these PIs could be potential candidates for optical substrates of OLEDs.
Scheme 5 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 5 Synthesis of substituted pyrroles from 1,4-diaryl-2-butene-1,4-diones and ammonium formate.
Scheme 2 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 2 Pathways for the Paal-Knorr synthesis of pyrroles: A. the enamine pathway and B. the hemiaminal pathway.
Scheme 3 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 3 Formation of N-unsubstituted pyrrole by the reaction of urea and acetonylacetone absorbed over K10 in a microwave oven.
Scheme 15 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 15 A plausible mechanism of calcium(II) chloride catalyzed Paal-Knorr condensation under MW irradiation.
Scheme 23 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 23 Synthesis of new pyrrole-based compound by reaction of 3-nitro-2H-chromenes with an ethyl isocyanoacetate.
Scheme 8 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 8 MW assisted Paal-Knorr condensation of cyclopentenone to a set of tricyclic pyrrole- 2-carboxamides.
Figure 3 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Figure 3 Number of published articles containing "microwave synthesis" indexed in Scopus (accessed 09.2023).
Scheme 9 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 9 Microwave induced uncatalyzed reaction of 2,5-dimethoxytetrahydrofuran with aryl sulfonamides and anilines in water.
Scheme 20 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 20 MW synthesis of pyrrole starting from 2,5-dimethoxytetrahydrofuran in the presence of an Mn-based catalyst.
Scheme 6 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 6 Cyclization of diketons with amines under microwave irradiation. Conditions: (a) NaOH, EtOH/H2O, reflux, 10 min. (b) Toluene, reflux, 12 h.
Scheme 12 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 12 Synthesis of N-substituted pyrroles starting from 2,5-hexanedione and amine using N-bromosuccinimide as catalyst and microwave oven.
The Datasheet of Synthesis of silver nanoparticles using microwave irradiation from Andaliman fruit (Zanthoxylum acanthopodium DC.) and exploring the potential of antibacterial, antibiofilm, and cell leakage activities
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Data from: Microwave-assisted synthesis of high thermal stability and colorless polyimides containing pyridine
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Scheme 4 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 4 Microwave irradiated condensation of diketone with primary amine.
Scheme 1 from: Mateev E, Irfan A, Mateeva A, Georgieva M, Zlatkov A (2024) Microwave-assisted organic synthesis of pyrroles (Review). Pharmacia 71: 1-10. https://doi.org/10.3897/pharmacia.71.e119866
Scheme 1 General Paal-Knorr synthesis of pyrroles.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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