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Solid-phase Synthesis of [4.4] Spirocyclic Oximes
Published on: February 6, 2019
2,2'-Spirobi(1,3-benzodithiole)
K Ueda1, M Iwamatsu, T Sugimoto
1Research Institute for Advanced Science and Technology, Osaka Prefecture University, Sakai, Osaka 599, Japan.
Abstract:
The X-ray structure analysis of 2,2'-spirobi(1,3-benzodithiole), C(13)H(8)S(4), has been performed. The molecule has crystallographic twofold rotation symmetry, the axis passing through the spiro-C atom. The four S atoms are arranged around the spiro-C atom in two almost orthogonal CS(2) planes. However, because of large bending of the two five-membered rings, close contact is present between two connected C atoms on the benzo group of each 1,3-benzodithiole ring and one S atom on the other 1,3-benzodithiole ring.
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