Influence of aromatic sulfonation on the geometry of [2.2]paracyclophane: crystal structures of one sulfonate, one disulfonic anhydride and five disulfonimides
作者:Dirk J. A. De Ridder、Kees Goubitz、Margot Fontijn、Pavla Čapková、Eva Dova、Henk Schenk
DOI:10.1107/s0108768101013817
日期:2001.12.1
away from each other in the case of monosulfonation (1), but are rotated in the opposite way in the case of the disulfonic anhydride (2) or the disulfonimide compounds (3)-(7). The results are also discussed in terms of the parameters proposed by Keehn [(1983), Organic Chemistry, A Series of Monographs 45, edited by P. H. Keehn & S. M. Rosenfeld, Vol. 1, pp. 69-238. New York: Academic Press] showing that
[2.2]对环环烷-4-磺酸钾(1),[2.2]对环环-4,15-二磺酸酐(2),[2.2]对环环-4,15-二磺酰亚胺(3),Nn-丙基- [2.2]对环-4,15-二磺酰亚胺(4),N-异丙基-[2.2]对环-4,15-二磺酰亚胺(5),N-环丙基-[2.2]对环-4,15-二磺酰亚胺(6)和通过单晶X射线衍射建立了N-苯基-[2.2]对环环烷-4,15-二磺酰亚胺(7)。讨论了由磺化引起的结构变化,涉及母体[2.2]对环环烷(三环[8.2.2.2(4,7)]十六烷-4,6,10,12,13,15-己烯)。主要特征是对亚苯基环之间非键合距离的变化以及这些环相对于分子对称平面的旋转。在单磺化(1)的情况下,环彼此分开旋转,但是在二磺酸酐(2)或二磺酰亚胺化合物(3)-(7)的情况下以相反的方式旋转。还根据Keehn [(1983),有机化学,系列专论45,由PH Keehn&SM Rosenfeld,Vol