2 research outputs found
Synthesis and Structure of a Propeller-Shaped Polycyclic Aromatic Hydrocarbon Containing Seven-Membered Rings
The
synthesis and structure of a <i>C</i><sub>3</sub>-symmetric
propeller-shaped polycyclic aromatic hydrocarbon that
bears three seven-membered rings is reported. The synthesis was accomplished
in three steps from benzo[<i>c</i>]naphtho[2,1-<i>p</i>]chrysene, including a Pd-catalyzed intramolecular
C–H arylation for the formation of the seven-membered rings.
The combination of the helicities (<i>P</i>/<i>M</i>) of the three seven-membered-ring moieties and three [4]helicene
moieties affords 24 possible conformers, and two relatively stable
conformations were observed by <sup>1</sup>H NMR spectroscopy
Synthesis and Structure of a Propeller-Shaped Polycyclic Aromatic Hydrocarbon Containing Seven-Membered Rings
The
synthesis and structure of a <i>C</i><sub>3</sub>-symmetric
propeller-shaped polycyclic aromatic hydrocarbon that
bears three seven-membered rings is reported. The synthesis was accomplished
in three steps from benzo[<i>c</i>]naphtho[2,1-<i>p</i>]chrysene, including a Pd-catalyzed intramolecular
C–H arylation for the formation of the seven-membered rings.
The combination of the helicities (<i>P</i>/<i>M</i>) of the three seven-membered-ring moieties and three [4]helicene
moieties affords 24 possible conformers, and two relatively stable
conformations were observed by <sup>1</sup>H NMR spectroscopy