A combination of friedel-crafts and lawesson reactions to 5-substituted-2,2´-bithiophenes
Gama-Keto esters (2) derivatives of thiophene were obtained from hemi-succinic esters and transformed to the corresponding amides (4). Lawesson´s treatment of 2 and 4 gave the corresponding bithiophenes (5) with alkoxy or amino substituents.
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| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2001
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| Texto completo: | https://hdl.handle.net/1822/1824 |
| País: | Portugal |
| Oai: | oai:repositorium.sdum.uminho.pt:1822/1824 |