Synlett p. 1247 - 1248 (1997)
Update date:2022-08-03
Topics:
Ikemizu, Dai
Matsuyama, Ayako
Takemura, Kazunori
Mitsunobu, Oyo
Reaction of primary or secondary 1,3-diols with dibenzoxazol-2-yl disulfide and tributylphosphine or triphenylphosphine selectively gave 2-(3-hydroxyalkylthio)benzoxazoles which, on treatment with KH, were converted into the corresponding thietanes. 2,2-Dibenzylthietane-1-oxide reacted with silylated purines and pyrimidines in the presence of TMSOTf and ZnI2 to give the corresponding thietane nucleosides in 17-69% yields.
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