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Abstract
Pentacoordinate 1,2-oxastibetanes have been synthesized and characterized by x-ray crystallographic analysis and NMR spectroscopy. Thermolyses of a pentacoordinate 1,2-oxastibetane were carried out under various conditions to give the corresponding oxirane with retention of configuration, the oxirane with inversion of configuration and the olefin respectively.
This work was partially supported by the Grant-in-Aid for The 21st Century COE Program for Frontiers in Fundamental Chemistry (T.K.) and for Scientific Research (T.K.) from the Ministry of Education, Culture, Sports, Science and Technology of Japan. We thank Central Glass and Tosoh Finechem Corporation for the gifts of organofluorine compounds and alkyllithiums respectively.