Synthesis and Diels-Alder reactions of 1,2-dimethylene[2.n]metacyclophanes.
The Diels-Alder reaction of 1,2-dimethylene[2.n]MCPs (MCP = metacyclophane) with suitable dienophiles followed by aromatization and photoinduced or FeCl(3)-induced transannular cyclization afforded phenanthrene-anellated polycyclic aromatic hydrocarbons, which were found to adopt helical chirality in the solid state.
Yamato
Takehiko
T
Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga-shi, Saga 840-8502, Japan. yamatot@cc.saga-u.ac.jp
Miyamoto
Shinpei
S
Hironaka
Tohru
T
Miura
Yoshinori
Y