Synthesis of New 3, 5-Diaryl-4, 5-Dihydroisoxazole-4- Carbonitriles via 1, 3-Dipolar Cycloaddition Reaction
نویسندگان
چکیده
منابع مشابه
Synthesis of 8-(5-Aryl-4-Octyl-2-Phenyl-3, 4-Dihydro-2H-Pyrazol- 3-yl)-Octanoic acid ethyl esters via 1, 3-Dipolar Cycloaddition Reaction
Aldehyde phenyl hydrazones 2a-i undergo oxidative dehydrogenation with Chloramine-T to give nitrile imines, which are trapped in situ by ethyl oleate 1 to afford 8-(5-Aryl-4-octyl-2-phenyl-3,4-dihydro-2Hpyrazol-3-yl)-octanoic acid ethyl esters 3a-i in good yield. The structures of the cycloadducts were confirmed by spectral studies and elemental analysis.
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A series of (5-nitrofuran-2-yl)-1, 3, 4-thiadiazole-2-yl derivatives 6a–6e have been synthesized and screened for in vitro anti-leishmanial activity against the promastigote form of L. major. The structure of Schiff bases were confirmed by 1H NMR, IR. Screening results indicate that all of the designed and synthesized final compounds (6a-6e) significantly reduced the viability of promastigotes ...
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A series of (5-nitrofuran-2-yl)-1, 3, 4-thiadiazole-2-yl derivatives 6a–6e have been synthesized and screened for in vitro anti-leishmanial activity against the promastigote form of L. major. The structure of Schiff bases were confirmed by 1H NMR, IR. Screening results indicate that all of the designed and synthesized final compounds (6a-6e) significantly reduced the viability of promastigotes ...
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5-Arylisoxazolyl-3-carboxaldehydes were condensed with N-aryl acetoaceta¬mide and ammonium acetate in methanol to give N3,N5-diaryl-4-(5-arylisoxazol-3-yl)-1,4-dihydropyridine-3,5-dicarboxamides. All compounds were screened for their antitubercular activity against Mycobacterium tuberculosis (H37Rv). The results for new synthesized compounds showed a moderate activity in comparison to rifampicin.
متن کاملMicrowave assisted synthesis of [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazine Derivatives
New pyrimido [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazines were synthesized via the cyclocondensation of alkyl-2-phenylhydrazinecarbodithioates as a binucleophile with 5-bromo-2,4-dichloro-6-methylpyrimidine as a bielectrophile , and replacement of C-7 chloro atom by hydrazine in ethanol as the solvent . This method has advantages over methods currently described in the literature for the con...
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ژورنال
عنوان ژورنال: IOSR Journal of Applied Chemistry
سال: 2012
ISSN: 2278-5736
DOI: 10.9790/5736-0142023