Nouvelles voies d'accès à des aryl-4 thiéno[2,3-c]pyridines et à des aryl-7 thiéno[3,2-c]pyridines |
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| Authors: | Jean-Pierre Maffrand Robert Boigegrain Jean Courregelongue Gerard Ferrand Daniel Frehel |
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| Abstract: | 4-Arylthieno2,3-c]pyridines and 7-arylthieno3,2-c]pyridines have been prepared by heating in polyphosphoric acid 2-(2-thenylamino>l-arylethanols or propanols and 2- 3-thenylamino>l-arylethanols or propanols, respectively.) Under the Beckmann rearrangement conditions, oximes of 4-aryl-4,5-dihydro-6H-cyclopentab]thiophen-6-one lead to 4-aryl-4,5- dihydro-6H-thieno2,3-c]pyridin-7-one. |
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