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Synlett 1999; 1999(6): 735-736
DOI: 10.1055/s-1999-2710
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Eight-Membered Thiocycloether via Indium-Mediated Ring Enlargement

Chao-Jun Li* , Dong-Li Chen
  • *Department of Chemistry, Tulane University, New Orleans, LA 70118, USA; Fax +1 (5 05) 8 65 55 96; E-mail: CJLi@Mailhost.Tcs.Tulane.Edu
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Publication Date:
31 December 1999 (online)

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The ring expansion of a thiocycloether is studied. Ethyl-4-oxo-thiotetrahydropyran-3-carboxylate was expanded to an eight-membered thiocyclo ether by using indium mediated carbon-carbon bond formation in aqueous medium.

indium - aqueous reaction - ring expansion - heterocycle