Amidrazone (1) waren bisher verhaltnismaOig schlecht zuginglich [I]. Dies spiegelt sich besonders darin, daO in der Reihe der Fettsaure-arnidrazone offenbar nur das Acetamidrazon [2] beschrieben ist. Wir fanden nun, daB Amidrazone durch aufeinanderfolgende Einwirkung von Natriumhydrazid [3] (bei 0-20 "C unter N2) und Wasser auf aliphatische und aromatische Nitrile bequem und in guter Ausbeute erhalilich sind. Cholestano[3P.Z~-b]-227 53 35 61 cis-Tetralino[2.1-b]-141 cis-Indano[Z. I-b]-4-Phenyl-1 :::[7] 81 cis-Cyclohexano[b]-55 161 41
whereas the newly discovered disproportionation according to route B can be regarded as a hydrogenation of an azo double bond [4]. The structure (3) can be considered as a transition state, especially since diimide produced from benzenesulfonylhydrazide hydrogenates added tolane stereospecifically to gibe cis-stilbene in at least 95 "/, yield, according to infrared analysis.The consequences of this auto-hydio~eii:rtion ore currently being investigated. Received, February 13th. 1963 [Z 449/279 IE] [ I ] S. Hiinig and H.
Die durch Oxidation der Chlornitropyridine (I) erhaltenen Pyridin‐N‐oxide (II) lassen sich mit Fluorsulfonsäuremethylester (III) zu den Methoxypyridiniumsalzen (IV) alkylieren.
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