Synthesis and stereochemistry of some new spiro and polyspiro-1, 3-dithiane derivatives
…, N Bogdan, A Terec, E Bogdan, Y Ramondenc, I Grosu
Index: Gaz, Serban Andrei; Condamine, Eric; Bogdan, Niculina; Terec, Anamaria; Bogdan, Elena; Ramondenc, Yvan; Grosu, Ion Tetrahedron, 2008 , vol. 64, # 30-31 p. 7295 - 7300
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Citation Number: 7
Abstract
The synthesis of new spiro and trispiro compounds with 2, 4, 8, 10-tetrathiaspiro [5.5] undecane and 7, 11, 18, 21-tetrathia [5.2. 2.5. 2.2] heneicosane units is reported. The structural analysis was carried out by NMR investigations and the X-ray single crystal molecular structure determined for one of the compounds. The barriers for the flipping of the 1, 3-dithiane units are determined by variable temperature NMR experiments.
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