Sodium hydrogen telluride as a useful nucleophilic reagent for the cleavage of epoxides and of quaternary ammonium salts |
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Authors: | Derek HR Barton Abdelwaheb Fekih Xavier Lusinchi |
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Institution: | Institut de Chimie des Substances Naturelles, C.N.R.S. 91190 Gif-sur-Yvette, France |
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Abstract: | Sodium hydrogen telluride opens many epoxides cleanly by an SN2 process to give telluro-alcohols, which by reduction with nickel boride afford alcohols. An intermediate telluro-alcohol was converted to olefin in high yield by treatment with -toluene-sulphonyl chloride in pyridine. Quaternary ammonium salt are also cleaved efficiently by sodium hydrogen telluride. |
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