Tellurium in organic synthesis: synthesis of bioactive butenolides |
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| Authors: | Bruno K Bassora Rogério A Gariani Alcindo A Dos Santos |
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| Institution: | a Instituto de Química, Universidade de São Paulo, CP 26077, 05599-070, São Paulo SP, Brazil
b Departamento de Química, Universidade Federal de São Carlos, 13565-905, São Carlos SP, Brazil |
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| Abstract: | Reduction of (Z)-β-butyltelluro-enones gives the corresponding γ-hydroxy vinylic tellurides with retention of the double bond configuration. Reaction of γ-hydroxy vinylic tellurides with 2 equiv of n-butyllithium produces 1,4-C,O-dianions, which on reaction with carbon dioxide give the corresponding butenolides. |
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