Synthesis of New Liquid-Crystalline Selenophenes via Electrophilic Cyclization of (Z)-Selenoenynes

Synthesis of New Liquid-Crystalline Selenophenes via Electrophilic Cyclization of (Z)-Selenoenynes

Rampon, Daniel S.; Merlo, Aloir A.; Schneider, Paulo H.

Abstract:

Organic chalcogenides are widely studied in development of organic materials with technological interest. In addition, these compounds also have a diverse array of important biological effects. In this context, heterocycles containing chalcogen atoms, specially thiophene, play an important role in development of _-rich molecules for architecture of organic semiconductors, conducting polymers and electroluminescent materials. Despite the potential of chalcogenophenes as constituent units of conducting polyconjugated systems, only few examples of liquid-crystalline compounds containing selenophene and tellurophene are investigated. Thus, taking in consideration our program towards the synthesis of molecules containing a chalcogen atom, we decided by the first time develop new liquid-crystalline selenophenes 1, employing electrophilic cyclization of (Z)-selenoenynes 2 (Scheme 1). To the best of knowledge, this is the first report of selenophenes to construction of achiral liquid crystals materials.

Organic chalcogenides are widely studied in development of organic materials with technological interest. In addition, these compounds also have a diverse array of important biological effects. In this context, heterocycles containing chalcogen atoms, specially thiophene, play an important role in development of _-rich molecules for architecture of organic semiconductors, conducting polymers and electroluminescent materials. Despite the potential of chalcogenophenes as constituent units of conducting polyconjugated systems, only few examples of liquid-crystalline compounds containing selenophene and tellurophene are investigated. Thus, taking in consideration our program towards the synthesis of molecules containing a chalcogen atom, we decided by the first time develop new liquid-crystalline selenophenes 1, employing electrophilic cyclization of (Z)-selenoenynes 2 (Scheme 1). To the best of knowledge, this is the first report of selenophenes to construction of achiral liquid crystals materials.

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DOI: 10.5151/chempro-14bmos-R0011-1

Referências bibliográficas

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Como citar:

Rampon, Daniel S.; Merlo, Aloir A.; Schneider, Paulo H.; "Synthesis of New Liquid-Crystalline Selenophenes via Electrophilic Cyclization of (Z)-Selenoenynes", p-11-11. In: In Blucher Chemistry Proceedings, São Paulo, v. 1, n. 1, Setembro.2013. São Paulo: Blucher, 2013.
ISSN 23184043, DOI 10.5151/chempro-14bmos-R0011-1