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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 33, 2003 - Issue 9
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Original Articles

Synthesis of 6-Substituted/Unsubstituted- 7,9-diaryl-1,2,4,8-tetraazaspiro[4.5]- decan-3-thiones

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Pages 1443-1448 | Received 27 Mar 2002, Published online: 16 Aug 2006
 

Abstract

Some 2,6-diarylpiperidin-4-one thiosemicarbazones (1a–8a), obtained from the corresponding 2,6-diarylpiperidin-4-ones (1–8) on oxidative cyclization with H2O2 at 0°C provide 7,9-diaryl-1,2,4,8-tetraaza spiro[4.5]decan-3-thiones (1b–8b) in excellent yields. The structures of these compounds have been established on the basis of their elemental, analytical and spectral data.

Acknowledgment

The authors are grateful to Dr. M. Vasudevan, JSS College of Pharmacy, Ooty, for his kind help in recording spectra and also to Prof. C. N. Krishnan, Head, Department of Chemistry, Annamalai University for providing needed facilities.

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