Synthesis of 5,6,17,18-Bisdehydrotetrathia[24]annulene[2.2.2.2]. A Strained Planar Annulene Devoid of Peripheral Conjugation
作者:Takeshi Kawase、Hossein Reza Darabi、Rika Uchimiya、Masaji Oda
DOI:10.1246/cl.1995.499
日期:1995.7
5,6,17,18-Bisdehydrotetrathia[24]annulene[2.2.2.2], synthesized through a sequence of the McMurry coupling of 1,1-dichloro-2,2-di(5-formyl-2-thienyl)ethene and a novel double Fritsch-Buttenberg-Wiechell rearrangement, has a planar X-ray structure with bent triple bonds and short S-S contacts but shows little sign of peripheral conjugation.
5,6,17,18-双脱氢四硫杂[24]蒽[2.2.2.2]是通过 1,1-二氯-2,2-二(5-甲酰基-2-噻吩基)乙烯的麦克马里偶联和新型双弗里奇-布滕伯格-维切尔重排顺序合成的,具有平面 X 射线结构,三键弯曲,S-S 接点短,但几乎没有外围共轭的迹象。