Synthesis of Azulene-Substituted Tetraarylpyrroles by Reaction of 1-Azulenyl Ketones with Benzoin and Ammonium Acetate

Taku Shoji, Sho Takagaki, Miwa Tanaka, Takanori Araki, Shuhei Sugiyama, Ryuta Sekiguchi, Akira Ohta, Shunji Ito, Tetsuo Okujima
2017 Heterocycles  
Tetraarylpyrroles with a 1-azulenyl substituent were prepared by the reaction of 1-azulenyl ketones, which have various aryl-substituents at their α-position, with benzoin in the presence of ammonium acetate as a nitrogen source of the pyrrole ring. Optical property of the tetraarylpyrroles obtained by the reaction was clarified by UV/Vis spectroscopy and/or time-dependent density functional theory (TD-DFT) calculations.
doi:10.3987/com-17-13781 fatcat:5462d44b4vfwngwv6bwimdigkq