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Synthesis of 1-dialkylamino-5,5,6,6-tetracyano-2-piperidones from 3-(N′,N′-dialkylhydrazino)-1,1,2,2-tetracyanocyclopentanes

✍ Scribed by O. E. Nasakin; V. P. Sheverdov; P. M. Lukin; S. N. Krasnokut-skii; P. A. Sharbatyan; S. V. Medvedev; A. B. Zolotoi; V. A. Tafeenko

Publisher
Springer US
Year
1990
Tongue
English
Weight
53 KB
Volume
26
Category
Article
ISSN
0009-3122

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✍ Olga A. Tarasova; Nina A. Nedolya; Vladimir Yu. Vvedensky; Lambert Brandsma; Bor 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 89 KB

A bs trac t: Reaction of lithiated ptopargylic amines with isothiocyanates, followed by addition of t-BuOK, t-BuOH and methyl iodide gives either 2,5-bis(N,N-dialkylamino)thiophenes or 1-alkyl-2-N,N-dialkylamino-5-methylthiopyn'oles depending on the temperature during the treatment with the base.