作者:Yasuto Uchimura、Takashi Takeda、Ryo Katoono、Kenshu Fujiwara、Takanori Suzuki
DOI:10.1002/anie.201500122
日期:2015.3.23
naphthalene core, the distance between the Cα carbon atoms was elongated beyond the limit of σ‐bond formation through “scissor effects”. The suppression of CαCα bond formation, which would lead to hexaphenylethane‐type compounds, is key to the first successful isolation of the α,o‐adducts. The 5‐diarylmethylene‐6‐triarylmethyl‐1,3‐cyclohexadiene unit in the α,o‐adducts is stable, and isomerization of the
在还原1个的ħ -cyclobuta [ DE ]萘-4,5-二基双(diarylmethylium)物种,一个新的C C键是℃之间形成的α和C的邻位的两个发色团的原子,其呈现出前所未有的耦合模式用于两个三苯甲基单元的二聚化。通过在相对的附接稠环丁烷环围 萘核心的位置,C之间的距离α 碳原子是通过“剪刀作用”拉长超出σ键形成的极限。C的抑制α Ç α形成六苯乙烷型化合物的键形成是成功分离出α,o加合物的关键。α,o-加合物中的5-二芳基亚甲基-6-三芳基甲基-1,3-环己二烯单元稳定,未观察到环己二烯单元异构化为芳族体系。新C形成α Ç邻键被于两个电子氧化裂解以再生二阳离子染料。