1428551-93-2Relevant articles and documents
Synthesis of [5]helicenes with a substituent exclusively on the interior side of the helix by metal-catalyzed cycloisomerization
Yamamoto, Kosuke,Okazumi, Mieko,Suemune, Hiroshi,Usui, Kazuteru
supporting information, p. 1806 - 1809 (2013/06/04)
[5]Helicenes with a substituent exclusively oriented toward the interior curvature of the helix are synthesized by metal-catalyzed cycloisomerization. In addition, novel azulene-fused helicenes have been found through cycloisomerization studies. These [5]helicenes shows a high enough configurationally stability to allow resolution by HPLC on a chiral stationary phase.