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Microwave Induced Synthesis of Ferrocenyl Substituted 1,2,4-s-Triazolo[3,4-b]-1,3,4-thiadiazoles

Mikrowelleninduzierte Synthese von ferrocenylsubstituierten 1,2,4-s-Triazolo[3,4-b]-1,3,4-thiadiazolen

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Summary.

 5-Substituted 4-amino-3-mercapto-1,2,4-s-triazoles were synthesized from their corresponding hydrazides. Their condensation with ferrocene carboxylic acid in presence of phosphorus oxychloride under microwave irradiation afforded 3-substituted 6-ferrocenyl-1,2,4,-s-triazolo[3,4-b]-1,3,4-thiadiazoles. All new compounds were characterized on the basis of analytical and spectroscopic data. Reaction rates and yields were considerably enhanced using microwaves.

Zusammenfassung.

 In Stellung 5 substituierte 4-Amino-3-mercapto-1,2,4-s-triazole wurden aus den entsprechenden Hydraziden dargestellt. Ihre Kondensation mit Ferrocencarbonsäure in Gegenwart von Phosphoroxychlorid unter Mikrowellenbestrahlung ergab in Position 3 substituierte 6-Ferrocenyl-1,2,4-s-triazolo[3,4-b]-1,3,4-thiadozole. Alle neuen Verbindungen wurden durch ihre analytischen und spektroskopischen Daten charakterisiert. Reaktionsgeschwindigkeiten und Ausbeuten wurden durch die Verwendung von Mikrowellen deutlich erhöht.

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Received July 13, 1998. Accepted (revised) October 6, 1998

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Kidwai, M., Bhushan, K. & Kumar, P. Microwave Induced Synthesis of Ferrocenyl Substituted 1,2,4-s-Triazolo[3,4-b]-1,3,4-thiadiazoles. Monatshefte fuer Chemie 130, 585–588 (1999). https://doi.org/10.1007/PL00010238

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  • DOI: https://doi.org/10.1007/PL00010238

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