Abstract
2H-1-benzothiete (1) and 2H,5H-benzo[1,2-b:4,5-b′]bisthiete (3) react in form of their open valence isomers with the trithiocarbonic acid esters 2a–c. The one- or twofold cycloaddition reactions yield 1,3-dithiin rings, in which C-2 is a spiro-C atom, that bears four sulfur groups. The bifunctional reactant 3 gives additionally band-shaped, hardly soluble oligomers.
摘要:2H-1-
苯硫醚(1)和2H,5H-
苯并[1,2-b:4,5-b']二
硫醚(3)与
三硫代碳酸酯2a-c以其开放价异构体的形式反应。一次或二次环加成反应产生1,3-二
硫环,其中C-2是一个螺旋-C原子,带有四个
硫基团。双功能反应物3还产生带状、难溶的寡聚体。