[n]Helicenes are aromatic substances consisting of ortho-condensed benzene rings. Due to steric shielding of the first and last ring they are forced to create non-planar structures shaped as helixes. The helixes can be either dextrorotary or levorotatory and the helicenes thus become inherently chiral. Both the enantiomers are stable and can be isolated. The combination of chirality and highly delocalized π-electron system provides them with extraordinary electronic and optical properties.

Helicenes have been used as liquid crystalline substances , in enantioselective catalysis, in material engineering or in molecular recognition. Their semi-conductive behavior can be applied in molecular electronics , in construction of conductors and transistors at a molecular level, as well as in preparation of functional organic layers.

The substances have a wide range of potential applications thanks to their extraordinary properties, however, the practical use is not too developed due to their difficult synthetic availability. This situation is expected to change once the substances are commercially available. In order to verify functionality of those substances and for the cooperation on potential utilization in various fields we are prepared to offer to you for testing a group of helicenes of 99% purity. We would like to share with you our findings and requirements for the production we are currently preparing. In the first stage the available substances are [6]- and [7]helicenes and their substituted derivatives 2-methoxy[6]helicene and 9-bromo[7]helicene.

The Lach-Ner now offers the above-mentioned helicenes in packaging 10 and 100 mg


10 mg 40654-BP0-R0010-1 150 EUR
100 mg 40654-BP0-R0100-1 499 EUR


10 mg 40655-BP0-R0010-1 158 EU
100 mg 40655-BP0-R0100-1 450 EUR


10 mg 40656-BP0-R0010-1 142 EUR
100 mg 40656-BP0-R0100-1 400 EUR


10 mg 40657-BP0-R0010-1 158 EUR
100 mg 40657-BP0-R0100-1 450 EUR

If interested, please, do not hesitate to contact us. Make sure to indicate the catalogue number of the product.

Ing. Jiří Vokál, Ph.D.,vokal@lach-ner.com or tel. 606 613 110


1. Shen Y.; Chen Ch. F. Chem. Rev., 2012, 112, 1463.
2. (a) Botek E.; Champagne B.; Turki M.; Andre J.M. J. Chem. Phys. 2004, 120, 2042; (b) Botek E.; Spassova M.; Champagne B.; Asselberghs I.; Persoons A.; Clays K. Chem. Phys. Lett. 2005, 412, 274; (c) Furche, F.; Ahlrichs, R.; Wachsmann, C.; Weber, E.; Sobanski, A.; Vögtle, F.; Grimme, S. J. Am. Chem. Soc. 2000, 122, 1717 – 1724; (d) Beljonne, D.; Shuai, Z.; Brédas, J. L.; Kauranen, M.; Verbiest, T.; Persoons, A. J. Chem. Phys. 1998, 108, 1301-1304.
3. Nuckolls, C.; Katz, T. J. J. Am. Chem. Soc. 1998, 120, 9541.
4. (a) Reetz, M. T.; Beuttenmuller, E. W.; Goddard, R. Tetrahedron Lett. 1997, 38, 3211; (b) Terfort, A.; Goörls, H.; Brunner, H. Synthesis 1997, 79; (c) Dreher, S. D.; Katz, T. J.; Lam, K.-C.; Rheingold, A. L. J. Org. Chem. 2000, 65, 815; (d) Sato, I.; Yamashima, R.; Kadowaki, K.; Yamamoto, J.; Shibata, T.; Soai, K. Angew Chem., Int. Ed. 2001, 40, 1096. 815; (e) Reetz, M.T.; Sostmann, S. J. Organomet. Chem. 2000, 603, 105; (f) Okubo, H.; Yamaguchi, M.; Kabuto, C. J. Org. Chem. 1998, 63, 9500.
5. Dai, Y.; Katz, T. J. J. Org. Chem. 1997, 62, 1274.
6. (a) Murguly, E.; McDonald, R.; Branda, N. R. Org. Lett. 2000, 2, 3169; (b) Owens, L.; Thilgen, C.; Diederich, F.; Knobler, C. B. Helv. Chim. Acta 1993, 76, 2757; (c) Yamamoto, K.; Ikeda, T.; Kitsuki, T.; Okamoto, Y.; Chikamatsu, H.; Nakazaki, M. J. Chem. Soc., Perkin Trans. 1 1990, 271; (d) Reetz, M. T.; Sostmann, S. Tetrahedron 2001, 57, 251; (b) Murguly, E.; McDonald, R.; Branda, N. R. Org. Lett. 2000, 2, 3169 – 3172; (e) Weix, D. J.; Dreher, S. D.; Katz, T. J. J. Am. Chem. Soc. 2000, 122, 10027.
7. Treboux, G.; Lapstun, P.; Wu, Z.; Silverbrook, K. Chem. Phys. Lett. 1999, 301, 493.
8. (a) Llunell, M.; Alemany, P.; Bofill, J. M.; ChemPhysChem 2008, 9, 1117 – 1119; (b) Kelly, T. R.; Cai, X.; Damkaci, F.; Panicker, S. B.; Tu, B., Bushell, S. M.; Cornella, I.; Piggott, M. J.; Salives, R.; Cavero, M.; Zhao, Y.; Jasmin, S. J. Am. Chem. Soc. 2007, 129, 376 -386; (c) Carroll, R. L.; Gorman, C. B. Angew. Chem. Int. Ed. 2002, 41, 4378.


tel.: +420 315 618 315
e–mail: info@lach-ner.com