作者:Andrej Jančařík、Jiří Rybáček、Kevin Cocq、Jana Vacek Chocholoušová、Jaroslav Vacek、Radek Pohl、Lucie Bednárová、Pavel Fiedler、Ivana Císařová、Irena G. Stará、Ivo Starý
DOI:10.1002/anie.201301739
日期:2013.9.16
Spiraling up: Easy access to dibenzo[5]‐, dibenzo[6]‐, and dibenzo[7]helicenes (see picture) as well as their functionalized derivatives includes Sonogashira and Suzuki–Miyaura couplings, desilylation, and [2+2+2] alkyne cycloisomerization. The simplicity of this non‐photochemical approach combined with the potential for helicity control favors dibenzohelicenes over the parent helicenes for practical
加速发展:轻松获得二苯并[5]-,二苯并[6]-和二苯并[7]螺旋(见图)及其功能化衍生物,包括Sonogashira和Suzuki-Miyaura偶联,去甲硅烷基化和[2 + 2 + 2]炔环异构化。在实际应用中,这种非光化学方法的简单性以及控制螺旋性的潜力使二苯并螺旋体优于母体螺旋体。