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Synlett 2003(15): 2292-2296
DOI: 10.1055/s-2003-42107
DOI: 10.1055/s-2003-42107
LETTER
© Georg Thieme Verlag Stuttgart · New York
ZnCl2 as an Efficient Catalyst in the Thiolysis of 1,2-Epoxides by Thiophenol in Aqueous Medium
Weitere Informationen
Publikationsverlauf
Received
2 September 2003
Publikationsdatum:
22. Oktober 2003 (online)


Abstract
ZnCl2 (5 mol%) is an efficient catalyst for the thiolysis of 1,2-epoxides by thiophenol in water at pH 4.0. A variety of β-hydroxy phenylsulfides were obtained in short reaction times and excellent yields. Starting from cyclohexene oxide (1), two one-pot multi-step procedures in sole water (thiolysis/oxidation with H2O2) have been realized, for the chemoselective synthesis of the corresponding β-hydroxysulfoxides 19 or for the related β-hydroxysulfone 20.
Key words
aqueous medium - thiolysis - 1,2-epoxides - ZnCl2 - catalysis