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- W2783240455 abstract "This work involved synthesis and characterization of new mono and twin fused pyrazolone(indazol-3-one) (IV) a-d and thioxo pyrimidine (III) a-d derivatives from Chalcones (mono(I) a,b and twin(I) c,d ) The synthesis of mono chalcones (I) a,b includes the reaction of (p-methoxy or p- methyl) benzaldehyde with 4-amino acetophenone while the twin acetophenone with p- methoxy benzaldehyde to produce twin chalcones (I) c,d , then converted it by Robinson annulations reaction to form the corresponding derivatives (II) a-d afterward reflux the cyclohexenones with hydrazine and some drops of GAA lead to form indazole derivatives (IV) a-d . Pyrimidines were synthesized via the reaction of chalcones with thiourea in NaOH and 80% ethanol. All these compounds are characterized by FT-IR spectroscopy and some of them by 1 HNMR spectroscopy." @default.
- W2783240455 created "2018-01-26" @default.
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- W2783240455 date "2017-12-30" @default.
- W2783240455 modified "2023-09-30" @default.
- W2783240455 title "Synthesis and Characterization of Indazol-3-one and Thioxo Pyrimidines Derivatives from Mono and Twin Chalcones" @default.
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- W2783240455 doi "https://doi.org/10.24996/ijs.2017.58.4c.1" @default.
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