Department of Chemistry, Faculty of Science, Osaka University, Toyonaka, Osaka 560, Japan;Faculty of Pharmaceutical Science, Nagasaki University, Bunkyomachi, Nagasaki 852, Japan
Abstract:
Trisdehydro14]annuleno16]annulene consisting of an aromatic bisdehydro14]annulene and an antiaromatic bisdehydro16]annulene has been synthesized. The strong paratropicity was observed in the 16]annulene moiety being comparable with that of extremely unstable parent bisdehydro16]annulene.