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Biheterocyclen aus Cyanessigsäurehydrazid und 1.3-Dicarbonyl-Verbindungen. Heilmittelchemische Studien in der heterocyclischen Reihe, 21. Mitteilung

✍ Scribed by Dr. Paul Schmidt; Dr. Konrad Meier; Dr. J. Druey

Publisher
John Wiley and Sons
Year
1958
Tongue
English
Weight
135 KB
Volume
70
Category
Article
ISSN
0044-8249

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📜 SIMILAR VOLUMES

Heilmittelchemische Studien in der heter
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## Abstract The synthesis of 4‐hydrazino‐benzo‐1,2,3‐thiadiazine 1,1‐dioxides is described. Chemical reactions and properties of these compounds are discussed. Some of the derivatives show hypotensive as well as diuretic activity.

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## Abstract 1‐Methyl‐3‐cyano‐l, 6‐dihydro‐pyridine (III) was allowed to react under mild conditions with maleic anhydride. After acid hydrolysis of the resulting adduct IV, followed by esterification of the dicarboxylic acid V, 2‐methyl‐5,6‐dicarbomethoxy‐7‐cyano‐2‐aza‐bicyclo[2.2.2]octene‐(7) (VI)

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## Abstract Base‐catalysed addition of phenylacetonitrile to 1‐methyl‐3‐cyano‐1, 6‐dihydropyridine (II) is shown to give α‐[1‐methyl‐3‐cyano‐1.4.5.6‐tetrahydro‐pyridyl‐(4)]‐phenylacetonitrile (VI). The structure of VI has been proved by its reduction to the saturated dicyano compound VIII, which ha