Zur Synthese von Imidazo(2,1-b)-1,3,4-thiadiazolo(3,2-a)-pyrimidonen-(6) |
| |
Authors: | Heinz Paul Rolf Wessel Günter Huschert |
| |
Affiliation: | (1) Sektion Chemie, Humboldt-Universität zu Berlin, DDR-1040 Berlin, Deutsche Demokratische Republik |
| |
Abstract: | 2-Amino-6-aryl-imidazo(2,1-b)-1,3,4-thiadiazoles (1 a-f) were condensed with 1,3-ketocarboxylates e. g. ethyl-butyroacetate, ethyl-benzoylacetate, 4-nitrobenzoylacetate or ethyl-cyclopentanone(2)-carboxylate and ethyl-cyclohexanone(2)-carboxylate directly to imidazo(2,1-b)-1,3,4-thiadiazolo(3,2-a) pyrimidones-(6) (4 a-f, 5 a-f, 6 d, e, 7 a-f, 8 a, d).11. Mitt. über Heterocyclen; 10. Mitt.Paul, H., Sitte, A., Wessel, R., Arch. Pharm. (Weinheim), im Druck. |
| |
Keywords: | Imidazo(2,1-b)-1,3,4-thiadiazoles, 2-amino-6-aryl Imidazo(2,1-b)-1,3,4-thiadiazolo(3,2-a) pyrimidones-(6) 1,3-Ketocarboxylates, condensation with- PPA, cyclisation with- |
本文献已被 SpringerLink 等数据库收录! |
|