Tetrahedron Letters p. 8599 - 8602 (1997)
Update date:2022-08-03
Topics:
Craig, Donald
King, N. Paul
Shaw, Antony N.
Dimethyl(methylthio)sulfonium tetrafluoroborate triggers ionisation and cyclisation of hemithioacetals 3 to give tetrahydrofurans 8-11 in good yields and stereoselectivities. The homologous sulfone analogues 17 give tetrahydropyrans on treatment with ethy
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