Setembro 2013 vol. 1 num. 1 - Brazilian Meeting on Organic Synthesis 2011

Abstract - Open Access.

Idioma principal

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.

Abstract:

Download (PDF)

Palavras-chave: Liquid Crystals, Selenophenes, Electrophilic Cyclization,

Palavras-chave: ,

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

Referências bibliográficas
  • [1] 1 (a) Patra, A.; et al. Chem. Mater. 2011, 23, 896. (b) Coropceanu, V.; et al. Chem. Rev. 2007, 107, 926.
  • [2] 2 Zeni, G.; et al. Chem. Rev. 2004, 104, 6255.
  • [3] 3 Perepichka, I.; et al. Handbook of Thiophene-based Materials. 2009, Wiley-VCH.
  • [4] 4 Seed, A.; et al. Mol. Cryst. Liq. Cryst. 1997, 299, 19.
  • [5] 5 (a) Rampon, D. S.; et al. J. Mat. Chem. 2010, 20, 71 (b) Rampon, D.; et al. J. Braz. Chem. Soc. 2010, 21, 2100.
  • [6] 6 Zeni,G.; et al. J. Org. Chem. 2007, 72, 672
  • [7] 7 Yin, K.; Li, C.; Li, G.; Jia, X. Green Chem. 2011, 13, 591.
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 . In: In Blucher Chemistry Proceedings, São Paulo, v. 1, n. 1, Setembro.2013. São Paulo: Blucher, 2013.
ISSN 2318-4043, DOI 10.5151/chempro-14bmos-R0011-1

últimos 30 dias | último ano | desde a publicação


downloads


visualizações


indexações