Rapid access to dibenzohelicenes and their functionalized derivatives.
Spiraling up: Easy access to dibenzo[5]-, dibenzo[6]-, and dibenzo[7]helicenes 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 applications.
Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague 6 (Czech Republic).
Andrej
A
Jančařík
Jiří
J
Rybáček
Kevin
K
Cocq
Jana
J
Vacek Chocholoušová
Jaroslav
J
Vacek
Radek
R
Pohl
Lucie
L
Bednárová
Pavel
P
Fiedler
Ivana
I
Císařová
Irena G
IG
Stará
Ivo
I
Starý
alkynes; aromaticity; asymmetric synthesis; chirality; helical structures