ChemInform Abstract: REAKTIONEN VON PERFLUORCARBONSAEUREHYDRAZIDEN 6. MITT. REAKTION CYCLISCHER PERFLUORDICARBONSAEUREANHYDRIDE MIT HYDRAZIN UND PERFLUORDICARBONSAEUREDIHYDRAZIDEN

Abstract

Die Perfluordicarbonsäureanhydride (I) reagieren mit Hydrazin in Diäthyläther bei ‐30‐+25 ‐30bis +25°C zu den Diacylhydrazinen (II); eine Behandlung dieser Diacylverbindungen mit PCl5 bei 170‐200°C liefert bei Aufarbeitung der Reaktionsprodukte; mit Methanol die Bis‐[methoxycarbonylperfluoralkyl]‐oxadiazole (III).

Chemistry of heterocyclic compounds at the A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, over 50 years (Review)

“…V. A. Lopyrev and coworkers realized a targeted synthesis of functionally substituted 1,2,4-triazoles and studied their acid-base characteristics and synthetic potential [346][347][348][349][350][351][352][353][354][355][356]. Methods were developed for the synthesis of various derivatives of amino-and diamino-1,2,4-triazoles, including fluorine-substituted 1H-1,2,4-triazole-3-amines 133 [346,354] Polyfluoroalkyl-1,3,4-oxadiazoles, which are of great practical interest, were synthesized and investigated [346,[355][356][357][358]. N-(4,5-Dihydro-1,3,4-thiadiazol-2-yl)-and N-(1,3,4-thiadiazol-2-yl)acetamides 134 and 135 were obtained during the acetylation of thiosemicarbazides with acetic anhydride [308,359].…”