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Conversion of Wiswesser Line Notations to Ring Codes. Part I. Conversion of Ring Systems

✍ Scribed by Granito, C. E.; Roberts, Scott; Gibson, G. W.


Book ID
126335470
Publisher
American Chemical Society
Year
1972
Weight
638 KB
Volume
12
Category
Article
ISSN
0021-9576

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## Abstract A new ring transformation reaction has been studied by treating 6‐ or 5,6‐disubstituted 4‐(methylthio)‐2‐oxo‐2__H__‐pyran‐3‐carbonitriles 2 with hydrazine and methylhydrazine leading to polysubstituted pyrazoles 4, 5, 6.