Tetrahedron letters

o-quinodimethanes from 3, 6-dihydrobenzo [b]-1, 2-oxathiin-2-oxides

JL Charlton, T Durst

Index: Charlton, James L.; Durst, Tony Tetrahedron Letters, 1984 , vol. 25, # 46 p. 5287 - 5290

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Citation Number: 27

Abstract

Abstract A two step synthesis of 3, 6-dihydrobenzo [b]-1, 2-oxathiin-2-oxide 5a from o-tolual- dehyde via the photochemically produced 1-hydroxy-1, 3-dihydrobenzo [b] thiophene-2, 2- dioxide is described. Analogous syntheses of 3 and 6 substituted derivatives of the benzosultines 5 have also been carried out. The feasibility of using these benzosultines as o- quinodimethane precursors has been tested by thermalizing the phenyl sultine 5c in ...