Pseudo five-component synthesis of 2,5-di(hetero)arylthiophenes via a one-pot Sonogashira-Glaser cyclization sequence

Autor: Dragutin Antovic, Dominik Urselmann, Thomas Müller
Rok vydání: 2011
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry, Vol 7, Iss 1, Pp 1499-1503 (2011)
ISSN: 1860-5397
Popis: Based upon a consecutive one-pot Sonogashira–Glaser coupling–cyclization sequence a variety of 2,5-di(hetero)arylthiophenes were synthesized in moderate to good yields. A single Pd/Cu-catalyst system, without further catalyst addition, and easily available, stable starting materials were used, resulting in a concise and highly efficient route for the synthesis of the title compounds. This novel pseudo five-component synthesis starting from iodo(hetero)arenes is particularly suitable as a direct access to well-defined thiophene oligomers, which are of peculiar interest in materials science.
Databáze: OpenAIRE