... synthesis. Download full text in PDF. Tetrahedron Letters,Vol.26,No.4,pp 53538,1985 Printed in Great Britain 0040-4039/85 $3.00 + .00 ~1985 Perqamon Press Ltd. PREPARATION AND REACTIONS OF 2-BENZENESULPHONYLTETRAHYDROPYRAN Steven V. Ley*, Barry Lygo and Anne Wonnacott Department of Chemistry, Imperial College, London SW7 2AY. Summary ...