Oda Mitsunori, Sakamoto Yukinari, Kajioka Takanori, Uchiyama Takuya, Miyatake Ryuta, Kuroda Shigeyasu
Department of Applied Chemistry, Faculty of Engineering Toyama University Gofuku 3190, Toyama 930-8555 (Japan) Fax: (+81) 76-445-6819.
Angew Chem Int Ed Engl. 2001 Jul 16;40(14):2660-2662. doi: 10.1002/1521-3773(20010716)40:14<2660::AID-ANIE2660>3.0.CO;2-6.
14π-Electrocyclization across the two pentafulvenoid moieties of pentafulvene 1 occurs upon heating to provide dicyclopenta[a,d]cyclooctene 2 [Eq. (1)]. The nonalternant hydrocarbon 2 shows diatropic character and a distinctive absorption spectrum with the longest wavelength maximum at 767 nm.
加热时，戊搭烯1的两个戊搭烯类部分会发生14π电环化反应，生成二环戊[a,d]环辛烯2 [式(1)]。非交替烃2具有抗磁性质，其特征吸收光谱的最长波长最大值在767 nm处。
