Synthesis of Some 1,4-Benzoxathiene 4,4-Dioxides and a Spectral Study of α,β-Unsaturated Sulphones
2-Methoxy-5-methyl-(IIIa) and 5-chloro-2-methoxy-(IIIb)-phenylsulphonylacetic acids are demethylated to their corresponding hydroxy compounds (V, R=CH3 and R=Cl).Condensation of V with aromatic aldehydes yields either 1,4-benzoxathiene 4,4-dioxides (VI, R
Baliah, V.,Ganapathy, K.,Ananthapadmanabhan, S.
p. 208 - 211
(2007/10/02)
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