200347-37-1Relevant articles and documents
Heterocyclic synthesis by C-C bond formation. Tetrahydrofuran and tetrahydropyran synthesis via oxonium ion-mediated cyclisation reactions
Craig, Donald,King, N. Paul,Shaw, Antony N.
, p. 8599 - 8602 (2007/10/03)
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