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Recyclable Keggin Heteropolyacids as an Environmentally Benign Catalyst for the Synthesis of New 2-Benzoylamino-N-phenyl-benzamide Derivatives under Microwave Irradiations at Solvent-Free Conditions and the Evaluation of Biological Activity.
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ABSTRACT:
SUBMITTER: Ighilahriz-Boubchir K
PROVIDER: S-EPMC5943967 | biostudies-literature | 2017 Dec
REPOSITORIES: biostudies-literature
Publications
Recyclable Keggin Heteropolyacids as an Environmentally Benign Catalyst for the Synthesis of New 2-Benzoylamino-N-phenyl-benzamide Derivatives under Microwave Irradiations at Solvent-Free Conditions and the Evaluation of Biological Activity.
Molecules (Basel, Switzerland) 20171221 1
2-Benzoylamino-<i>N</i>-phenyl-benzamide derivatives (<b>5a</b>-<b>h</b>) were prepared from 2-phenyl-3,1-(4<i>H</i>)-benzoxazin-4-one <b>3</b> and substituted anilines <b>4a</b>-<b>h</b> in the presence of a Keggin-type heteropolyacids series (H₃PW<sub>12</sub>O<sub>40</sub>·13H₂O; H₄SiW<sub>12</sub>O<sub>40</sub>·13H₂O; H₄SiMo<sub>12</sub>O<sub>40</sub>·13H₂O; and H₃PMo<sub>12</sub>O<sub>40</sub>·13H₂O) as catalysts without solvent and under microwave irradiation. We found that the use of H₃PW ...[more]