## 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)
Heilmittelchemische Studien in der heterocyclischen Reihe. 23. Mitteilung. Pyridazine XI. Die Reaktion von Kojisäure mit Hydrazin. 1. Teil
✍ Scribed by A. F. Thomas; A. Marxer
- Publisher
- John Wiley and Sons
- Year
- 1958
- Tongue
- German
- Weight
- 350 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
It has been shown that the reaction between kojic acid and hydrazine hydrate gives rise to two main products: 3,6‐dihydroxymethyl‐4‐oxo‐1,4‐dihydro‐pyridazine, and the hydrazone of 3‐hydroxymethyl‐pyrazol‐5‐yl‐hydroxyacetaldehyde, the structures of which were proved unambiguously.
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Bei der Verwendung von 2,2,5,5-Tetramethylimidazolidinthion-(4) als Zwischenprodukt fur die Synthese von pharmakologisch wirksamen Verbindungen sind wir auf eine unerwartete Reaktion gestossen, uber die wir im folgenden berichten mochten. ## Zum ersten Male haben GATEWOOD & JOHN SON^) I erhalten,
## 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