scholarly journals "One pot" Microwave Assisted Synthesis of 5,10,15-Tri(4-Methoxyphenyl)- 20-( 4-Chlorophentyl)-21H,23H-Porphyrin and its Zinc (II) Complex.

Quimica Hoy ◽  
2012 ◽  
Vol 2 (2) ◽  
pp. 4
Author(s):  
Erika Loredo Calderón ◽  
Carolina Martínez Lejía ◽  
Susana López Cortina ◽  
Blanca Muñoz Flores ◽  
Eugenio Hernández Fernández ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Potential Application ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
H Nmr ◽  
Microwave Assisted ◽  
Comparative Results ◽  
O 15 ◽  
New Compounds

Toe synthesis of new unsymmetrical A,B porphyrin, 5,10,15-tri(4-methoxyphenyl)-20-(4-chlorophenyl)-21H, 23H-porphyrin, 1, and its Zinc(II) complex, 5, 1 O, 15-tri( 4-methoxyphenyl)-20-( 4-chlorophenyl)-21, 23- Zinc(II)-porphine, l, was accomplished using both conventional and "one pot" solventless microwave assisted methods with interesting comparative results. The obtained molecules were characterized by 'H NMR, UV-Vis and MS. These molecules are considered to represent new compounds with potential application as photosensitizers in photodynamic therapy.

scholarly journals Design and microwave-assisted synthesis of a novel Mannich base and conazole derivatives and their biological assessment

2021 ◽  
Vol 27 (1) ◽  
pp. 100-111
Author(s):  
Yıldız Uygun Cebeci ◽  
Şengül Alpay Karaoğlu
Keyword(s):  
Mannich Base ◽  
Antimicrobial Activities ◽  
Mannich Bases ◽  
Biological Assessment ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
H Nmr ◽  
Microwave Assisted ◽  
New Compounds ◽  
C Nmr

Abstract 4-Amino-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (1) was converted to the corresponding Schiff base (2) by treatment with salicylaldehyde. 1,2,4-Triazoles were then converted to the corresponding Mannich bases containing fluroquinolone core using a one-pot three-component procedure. Moreover, the synthesis of six compounds, which can be considered as conazole analogues, was performed starting from 1,2,4-triazole-3-one compounds via three steps by either conventional or microwave-mediated conditions. All the newly synthesized compounds were screened for their antimicrobial activities. Most exhibited good to moderate antibacterial and/or antifungal activity. The structural assignments of the new compounds were based on elemental analysis and spectral (IR, 1H NMR, 13C NMR, and LC-MS) data.

scholarly journals One-Pot Microwave-Assisted Synthesis of Carbon Dots and in vivo and in vitro Antimicrobial Photodynamic Applications

2021 ◽  
Vol 12 ◽  
Author(s):  
María Paulina Romero ◽  
Fernanda Alves ◽  
Mirian Denise Stringasci ◽  
Hilde Harb Buzzá ◽  
Heloísa Ciol ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Carbon Dots ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Blue Led ◽  
Led Light ◽  
Microwave Assisted

Graphical AbstractBrief description of the procedures carried out in this study. In vivo and in vitro antibacterial photodynamic therapy (aPDT) studies, where aPDT mediated by C-DOTS and blue LED light against S. aureus was evaluated.

scholarly journals One-Pot Microwave-Assisted Synthesis of Water-Soluble Pyran-2,4,5-triol Glucose Amine Schiff Base Derivative: XRD/HSA Interactions, Crystal Structure, Spectral, Thermal and a DFT/TD-DFT

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 117
Author(s):  
Yousef Hijji ◽  
Rajeesha Rajan ◽  
Hamdi Ben Yahia ◽  
Said Mansour ◽  
Abdelkader Zarrouk ◽  
...  
Keyword(s):  
Schiff Base ◽  
Molecular Orbital ◽  
Density Functional ◽  
Condensation Reaction ◽  
3D Structure ◽  
Water Soluble ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted ◽  
Td Dft

The(3R,4R,6R)-3-(((E)-2-hydroxybenzylidene)amino)-6-(hydroxymethyl)tetrahydro-2H-pyran-2,4,5-triol water-soluble Glucose amine Schiff base (GASB-1) product was made available by condensation of 2-hydroxybenzaldehyde with (3R,6R)-3-amino-6-(hydroxymethyl)-tetra-hydro-2H-pyran-2,4,5-triol under mono-mode microwave heating. A one-pot 5-minute microwave-assisted reaction was required to complete the condensation reaction with 90% yield and without having byproducts. The 3D structure of GASB-1 was solved from single crystal X-ray diffraction data and computed by DFT/6-311G(d,p). The Hirshfeld surface analysis (HSA), molecular electronic potential (MEP), Mulliken atomic charge (MAC), and natural population analysis (NPA) were performed. The IR and UV-Vis spectra were matched to their density functional theory (DFT) relatives and the thermal behavior was resolved in an open-room condition via thermogravimetry/Derivative thermogravimetry (TG/DTG) and differential scanning calorimetry (DSC). The highest occupied molecular orbital/lowest unoccupied molecular orbital (HOMO/LUMO), density of state (DOS), and time-dependence TD-DFT computations were correlated to the experimental electron transfer in water and acrylonitrile solvents.

scholarly journals Microwave-assisted synthesis and characterization of some optically active poly(ester-imide) thermoplastic elastomers

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Saeed Zahmatkesh ◽  
Abdol Reza Hajipour
Keyword(s):  
Thermal Analyses ◽  
Specific Rotation ◽  
Thermoplastic Elastomers ◽  
Optically Active ◽  
Microwave Assisted Synthesis ◽  
H Nmr ◽  
Microwave Assisted ◽  
Diacid Chloride ◽  
Elemental Analyses

AbstractPyromellitic dianhydride (1) was reacted with L-leucine (2) to result in [N,N'-(pyromellitoyl)-bis-L-leucine diacid] (3). This compound (3) was converted to N,N'-(pyromellitoyl)-bis-L-leucine diacid chloride (4) by reaction with thionyl chloride. The microwave-assisted polycondensation of this diacid chloride (4) with polyethyleneglycol-diol (PEG-200) and/or three synthetic bisphenols furnish a series of new PEIs and Co-PEIs in a laboratory microwave oven (Milestone). The resulting polymers and copolymers have inherent viscosities in the range of 0.31- 0.53 dl g-1. These polymers are optically active, thermally stable and soluble in polar aprotic solvents such as DMF, DMSO, NMP, DMAc and sulfuric acid. All of the above polymers were fully characterized by IR spectroscopy, 1H NMR spectroscopy, elemental analyses, specific rotation and thermal analyses. Some structural characterizations and physical properties of these optically active PEIs and Co-PEIs are reported.

Microwave-assisted synthesis of 1-aryl-1H-indazoles via one-pot two-step Cu-catalyzed intramolecular N-arylation of arylhydrazones

2005 ◽  
Vol 46 (44) ◽  
pp. 7553-7557 ◽  
Author(s):  
Chittari Pabba ◽  
Hong-Jun Wang ◽  
Susan R. Mulligan ◽  
Zhen-Jia Chen ◽  
Todd M. Stark ◽  
...  
Keyword(s):  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted

Facile one-pot microwave-assisted synthesis of tungsten-doped BiVO4/WO3 heterojunctions with enhanced photocatalytic activity

2020 ◽  
Vol 125 ◽  
pp. 110783 ◽  
Author(s):  
Caroline H. Claudino ◽  
Maria Kuznetsova ◽  
Bárbara S. Rodrigues ◽  
Changqiang Chen ◽  
Zhiyu Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted

scholarly journals Screening of Natural Deep Eutectic Solvents for Green Synthesis of 2-methyl-3-substituted Quinazolinones and Microwave-Assisted Synthesis of 3-aryl Quinazolinones in Ethanol

2020 ◽  
Vol 92 (4) ◽  
pp. 511-517
Author(s):  
Mario Komar ◽  
Maja Molnar ◽  
Anastazija Konjarević
Keyword(s):  
Green Synthesis ◽  
Anthranilic Acid ◽  
Deep Eutectic Solvents ◽  
13C Nmr Spectroscopy ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
1H And 13C Nmr ◽  
Microwave Assisted ◽  
Natural Deep Eutectic Solvents ◽  
Quinazolinone Derivatives

In this study, two fast and efficient protocols for green synthesis of 3-substituted quinazolinones were perfomed. A synthesis of 2-methyl-3-substituted quinazolinones was performed in natural deep eutectic solvents, while 3-aryl quinazolinones were obtained by using microwave assisted synthesis. Benzoxazinone, which was used as an intermediate in the synthesis of 2-methyl-3-substituted quinazolinones, was prepared conventionally from anthranilic acid and acetic anhydride. In order to find the most appropriate synthetic path, twenty natural deep eutectic solvents were applied as a solvent in these syntheses. Choline chloride:urea (1 : 2) was found to be the most efficient solvent and was further used in the synthesis of 2-methyl quinazolinone derivatives (2–12). 3-Aryl quinazolinones (13–17), on the other hand, were synthesized in one-pot microwave-assisted reaction of anthranilic acid, different amines and trimethyl orthoformate. All compounds were synthesized in good to excellent yields, characterized by LC-MS/MS spectrometry and 1H- and 13C-NMR spectroscopy.

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