Microwave assisted one pot synthesis of tetrazole based 3-hydroxy-4H-chromen-4-ones by modified algar-flynn-oyamada reaction and their antimicrobial activity
Document title: Microwave assisted one pot synthesis of tetrazole based 3-hydroxy-4H-chromen-4-ones by modified algar-flynn-oyamada reaction and their antimicrobial activity
Journal: Journal of the Mexican Chemical Society
Database: PERIÓDICA
System number: 000437776
ISSN: 1870-249X
Authors: 1
1
2
1
Institutions: 1Osmania University, Department of Chemistry, Andhra, Andhra Pradesh. India
2Satavahana University, Department of Chemistry, Andhra Pradesh. India
Year:
Season: Oct-Dic
Volumen: 63
Number: 4
Country: México
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
Spanish abstract En este trabajo se reporta la síntesis en un matraz (one-pot) de tetrazol basada en 3-hidroxi-4H-cromen-4-onas 3(a-g) a partir de 4-(1H-tetrazol-5-yl) benzaldehído y 2-hidroxi acetofenona utilizando KOH y H2O2 de acuerdo con la reacción de Algar-Flynn-Oyamada modificada bajo condiciones de reacción convencionales y de microondas. En esta técnica, se sintetizan flavonoles con buen rendimiento, sin aislar calconas. Todos los compuestos sintetizados se caracterizaron por IR, NMR, MS y análisis elemental. su La actividad antimicrobiana de todos los compuestos sintetizados por primera vez se probó in vitro contra cepas como Staphylococcus aurous, Bacillus subtilis, Klebsiella pneumonia, Escherichia coli, Aspergillus Niger, Aspergillus flavus y Fusarium oxysporum. Los resultados de los estudios antimicrobianos revelaron que la mayoría de los compuestos tienen una buena actividad
English abstract In the present work, we report the one pot synthesis of tetrazole based 3-hydroxy-4H-chromen-4-ones 3(a-g) from 4-(1H-tetrazol-5-yl)benzaldehyde and 2-hydroxy acetophenone using KOH and H2O2 by modified Algar-Flynn-Oyamada reaction under conventional and microwave irradiation conditions. In this technique, flavonols are synthesized without isolating chalcones, in good yields. All the synthesized compounds were characterized by IR, NMR, MS and elemental analysis. All newly synthesized compounds were screened for their in-vitro antimicrobial activity against strains such as Staphylococcus aurous, Bacillus subtilis, Klebsiella pneumonia, Escherichia coli, Aspergillus Niger, Aspergillus flavus, and Fusarium oxysporum. The results of antimicrobial studies revealed that most of the compounds exhibit good activity
Disciplines: Química
Keyword: Química orgánica,
2-hidroxiacetofenona,
Benzaldehído,
Irradiación,
Microondas,
Actividad antimicrobiana
Keyword: Organic chemistry,
2-hydroxy acetophenone,
Benzaldehyde,
Microwave,
Irradiation,
Antimicrobial activity
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