Arylamino-thieno-oxobutanamides under Lawesson’s conditions : competition between thienylpyrrole and bithiophene formation

1-Aryl-2-thienyl-substituted pyrroles and/or 5-arylamino-2,2´-bithiophenes were synthesized by treatment of arylaminothieno-oxobutanamides with Lawesson’s reagent. These in turn were prepared by direct amidation of 4-oxo-(2-thienyl)butanoic acid through DCC–BtOH mediated reactions.

Detalhes bibliográficos
Autor principal: Raposo, M. Manuela M. (author)
Outros Autores: Sampaio, Ana M. B. A. (author), Kirsch, G. (author)
Formato: article
Idioma:eng
Publicado em: 2005
Assuntos:
Synthesis
Amides
Pyrroles
Bithiophenes
Friedel-Crafts reaction
Lawesson´s reagent
Aylamino-thieno-oxobutanamides
Pi-conjugated systems
Precursors of nonlinear optical (NLO) materials
Precursors of organic conductive polymers
heterocycles
substituent effects
bicyclic compounds
Science & Technology
Texto completo:http://hdl.handle.net/1822/10658
País:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/10658
Descrição
Resumo:1-Aryl-2-thienyl-substituted pyrroles and/or 5-arylamino-2,2´-bithiophenes were synthesized by treatment of arylaminothieno-oxobutanamides with Lawesson’s reagent. These in turn were prepared by direct amidation of 4-oxo-(2-thienyl)butanoic acid through DCC–BtOH mediated reactions.

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