Band-Shaped Structures by Repetitive Cycloaddition Reactions of Benzo[1,2-b:4,5-b′]bisthiete
作者:Herbert Meier、Bernd Rose、Dieter Schollmeyer
DOI:10.1002/jlac.199719970619
日期:1997.6
thereby generating two highlyreactive 8π systems (Scheme 1). In the presence of 1,4-dihydro-1,4-epoxynaphthalenes 2, the dithiaheptacene derivatives 3 are formed, dehydration of which leads to the compounds 4 and 5 (Scheme 2). Repetitive cycloaddition reactions of 1 with the twofold 2π component 11 (Scheme 3) yield the oligomers 15 with statistically bent (and possibly cyclic) structures (Schemes 4 and 5)
苯并[1,2- b:4,5- b ']双硫杂环丁烷(1)经历4元环的逐步热打开,从而生成两个高反应性的8π系统(方案1)。在1,4-二氢-1,4-环氧萘2的存在下,形成了二噻庚烯衍生物3,其脱水生成化合物4和5(方案2)。具有双重2π组分11的重复的1的环加成反应(方案3)产生具有统计上弯曲的(并且可能是环状的)结构的低聚物15(方案4和5)。而15和相关的低聚物14由于可自由溶于许多有机溶剂,因此脱水系统16(方案6)完全不溶。