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Studies in Sigmatropic Rearrangement: Synthesis of a [6,6]Pyranothiopyran Ring System by Sequential Claisen Rearrangement and Pyridine Hydrotribromide Mediated Regioselective “6‐Endo” Cyclization. |
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| Authors: | K. C. Majumdar U. K. Kundu S. K. Ghosh |
| Abstract: | |
| Keywords: | thiopyran derivatives rearrangements benzopyran derivatives |