85986-91-0Relevant academic research and scientific papers
Synthesis, photophysical properties, and application of o - And p -amino green fluorescence protein synthetic chromophores
Chen, Yi-Hui,Lo, Wei-Jen,Sung, Kuangsen
, p. 301 - 310 (2013/02/25)
The o- and p-amino green-fluorescence-protein synthetic chromophores (GFPSCs) were synthesized from the corresponding o- and p-nitro protecting group. Among the four protecting groups of the o-amino group, the o-nitro protecting group is the only choice to synthesize the o-amino GFPSCs. The first singlet excited states of o- and p-amino GFPSCs carry significant charge-transfer character through the mechanism of photoinduced charge transfer (PCT). The o-amino GFPSCs can serve as wavelength-ratiometric fluorescence sensors that selectively recognize Cr3+ in aqueous medium through a PCT mechanism.
Microwave-assisted synthesis and antimicrobial screening of new imidazole derivatives bearing 4-thiazolidinone nucleus
Desai,Joshi,Rajpara,Vaghani,Satodiya
, p. 1893 - 1908 (2013/07/26)
A new series of compounds 2-((1-(4-(4-arylidene-2-methyl-5-oxo-4,5-dihydro- 1H-imidazol-1-yl)phenyl)ethylidene)hydrazono)thiazolidin-4-ones (4a-o) have been synthesized under conventional and microwave irradiation method. All compounds were characterized by IR, 1H NMR, 13C NMR and mass spectra. Newly synthesized compounds were screened for their antibacterial and antifungal activities on Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Staphylococcus pyogenes, Candida albicans, Aspergillus niger and Aspergillus clavatus by bioassays, namely serial broth dilution. The synthesized compounds showed potent antimicrobial activity against tested microorganisms. Compounds 4h, 4j, 4m and 4n were the most potent amongst tested compounds.
Cyclocondensation reactions of heterocyclic carbonyl compounds XI [1]. Synthesis and study of cyclocondensation reactions of some 3-substituted-5-(2- aminobenzyl)-1H-[1,2,4]triazine-6-ones
Gucky, Tomas,Slouka, Jan,Malon, Michal,Frysova, Iveta
, p. 613 - 621 (2007/10/03)
A series of 2-substituted-4-(2-nitrobenzylidene)-4,5-dihydrooxazol-5-ones (2a-2i) was prepared by the Erlenmeyer's synthesis of 2-nitrobenzaldehyde with acylglycines (1a-1i) and the series of corresponding aminoderivatives (3b-3d and 3g-3i) was synthetise
Deracemisation of aryl substituted α-hydroxy esters using Candida parapsilosis ATCC 7330: Effect of substrate structure and mechanism
Baskar,Pandian,Priya,Chadha, Anju
, p. 12296 - 12306 (2007/10/03)
Candida parapsilosis ATCC 7330 was found to be an efficient biocatalyst for the deracemisation of aryl α-hydroxy esters (65-85% yield and 90-99% ee). A variety of aryl and aryl substituted α-hydroxy esters were synthesized to reflect steric and electronic effects on biocatalytic deracemisation. The mechanism of this biocatalytic deracemisation was found to be stereoinversion.
Keto/enol tautomerism in phenylpyruvic acids: Structure of the o- nitrophenylpyruvic acid
Carpy,Haasbroek,Ouhabi,Oliver
, p. 191 - 198 (2007/10/03)
The synthesis of a tautomeric keto/enol mixture of o-nitrophenylpyruvic acid followed the acid hydrolysis of the azlactone of o-nitrobenzaldehyde was carried out. The structures of the two tautomeric forms were assigned by NMR spectroscopy. X-ray diffraction of a single crystal revealed that the crystalline form corresponds to the keto tautomer. Quantum mechanics calculations in the gas phase confirmed the experimental findings in solution. (C) 2000 Elsevier Science B.V.
2-METHYL-4-(o-NITROBENZYLIDENE)OXAZOL-5-ONES
Mazurov, A. A.,Andronati, S. A.,Antonenko, V. V.
, p. 514 - 515 (2007/10/02)
The cis and trans isomers of 2-methyl-4-(o-nitrobenzylidene)oxazol-5-one have been obtained.On reduction, the cis isomer formed 3-acetamidoquinolin-2-ol, and the trans isomer formed 4-(o-aminobenzylidene)-2-methyloxazol-5-one.Details of the IR, UV, PMR, a
