Seven-membered heterocycles. 9. Synthesis and properties of some 5-alkyl and 5-aryl derivatives of 1-benzothiepin

VJ Traynelis, JA Schield, WA Lindley…

Index: Traynelis,V.J. et al. Journal of Organic Chemistry, 1978 , vol. 43, p. 3379 - 3384

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Citation Number: 14

Abstract

7a-Chlorocyclopropa [b][l] benzothiopyran-7-one (2) and 7a-bromocyclopropa [b][l] benzothiopyran-7-one (3) each reacted with Grignard reagents to give the corresponding cyclopropyl alcohols 4-10 (Table I). The alcohols 5, 7, and 8 were oxidized to the corresponding sulfones 11, 12, and 13, respectively, and 7a-chloro-7-hydroxy-7- phenylcyclopropa [b][l][benzothiopyran was oxidized to the corresponding sulfoxide 14. ...