Tetrahedron letters

A one-pot synthesis of 1, 4-dithiins and 1, 4-benzodithiins from ketones using the recyclable reagent 1, 1′-(ethane-1, 2-diyl) dipyridinium bistribromide (EDPBT)

S Murru, V Kavala, CB Singh, BK Patel

Index: Murru, Siva; Kavala, Veerababurao; Singh; Patel, Bhisma K. Tetrahedron Letters, 2007 , vol. 48, # 6 p. 1007 - 1011

Full Text: HTML

Citation Number: 14

Abstract

A novel access to 1, 4-dithiins and 1, 4-benzodithiins from the corresponding ketones in one- pot using the recyclable reagent, 1, 1′-(ethane-1, 2-diyl) dipyridinium bistribromide (EDPBT) is described. This method is mild, simple, environmentally benign and is applied successfully for the ring expansion of 1, 3-dithiolane to 1, 4-dithiins and the ring expansion associated with aromatisation of cyclic ketones with or without double bonds in the ring. ...