Diaryldiacyloxyspirosulfuranes. Part 3. Sulfuranes with five-, six- and seven-membered spirorings: syntheses and molecular structures
作者:István Kapovits、József Rábai、Dénes Szabó、Klára Czakó、Árpád Kucsman、Gyula Argay、Vilmos Fülöp、Alajos Kálmán、Tibor Koritsánszky、László Párkányi
DOI:10.1039/p29930000847
日期:——
lengths range from 1.838(1) to 1.872(3) and from 1.771 (3) to 1.794(4)Å, respectively. The axial O–S–O and equatorial Car–S–Car bond angles lie in the narrow intervals of 174.9(2)–177.4(4)° and 105.8(2)–106.9(2)°, respectively. The five-membered spirorings are practically planar in 1–3. The six-membered spirorings in 2 and 4 assume distorted sofa conformations. The seven-membered spiroring in 3, having four
三种新型diaryldiacyloxyspirosulfuranes(2 - 4)与五元,六元,七元spirorings已经制备,和其分子结构通过确定X射线衍射。具有两个相同的五元单体化合物的螺硫丹1的结构已被重新研究。在所有spirosulfuranes 1 - 4围绕中心硫原子的配位体的布置示出了稍微扭曲三角双锥(TBP),得到手性分子结构的几何形状。轴向(高价)S-O和赤道(共价)SC -C ar键的长度分别为1.838(1)至1.872(3)和1.771(3)至1.794(4)Å。轴向O–S–O和赤道Car –S–Car键角分别位于174.9(2)–177.4(4)°和105.8(2)–106.9(2)°的较窄间隔内。五元spirorings实际上平面在1 - 3。2号和4号中的六人长裙具有变形的沙发构型。3中具有四个C ar原子且呈平面构型的七元螺帽是不规则的。仅当加香剂为五元分