• 제목/요약/키워드: Grindstone technology

검색결과 2건 처리시간 0.021초

'One Pot' Synthesis of 2-Amino-3-cyano-4,6-diarylpyridines under Ultrasonic Irradiation and Grindstone Technology

  • Gupta, Ragini;Jain, Anshu;Jain, Meenakshi;Joshi, Rahul
    • Bulletin of the Korean Chemical Society
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    • 제31권11호
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    • pp.3180-3182
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    • 2010
  • A simple facile 'one pot' synthesis of 2-amino-3-cyano-4,6-diarylpyridine derivatives via three component reaction of chalcone, malanonitrile and ammonium acetate under ultrasonic irradiation and grindstone technology. All the synthesized compounds have been characterized on the basis of their elemental analyses and spectral data (IR, $^1H$ NMR, $^{13}C$ NMR and Mass).

Eco-friendly Solventless Synthesis of 5-Indolylpyrimido[4,5-d]pyrimidinones and Their Antimicrobial Activity

  • Gupta, Ragini;Jain, Anshu;Joshi, Rahul;Jain, Meenakshi
    • Bulletin of the Korean Chemical Society
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    • 제32권3호
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    • pp.899-904
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    • 2011
  • A series of 5-indolylpyrimido[4,5-d]pyrimidinones (4a-h) were obtained by multi-component reaction of 3-formylindole (1), thiobarbituric acid/barbituric acid (2) and thiourea/urea (3) under microwave irradiation in dry media. Secondly, grinding together neat reactants also gave the titled compounds in good yields. All the synthesized compounds have been characterized on the basis of elemental analyses and spectral data (IR, $^1H$ NMR and Mass). Representative compounds were also evaluated for their antimicrobial activity against Rhizopus stolonifer, Fusarium oxysporum, Escherichia coli, and Pseudomonas aeruginosa at different concentrations. Some of the compounds showed promising activity.