Novel syntheses of 2, 3??dihydro??5H??1, 4??benzoxathiepins and 1, 2, 3, 5??tetrahydro??4, 1??benzothiazepines

H Ishibashi, M Okada, A Akiyama…

Index: Ishibashi; Okada; Akiyama; et al. Journal of Heterocyclic Chemistry, 1986 ,  vol. 23,  # 4  p. 1163 - 1166

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Citation Number: 15

Abstract

Abstract 2, 3-Dihydro-5H-1, 4-benzoxathiepins were prepared by intramolecular Friedel- Crafts reactions of ethyl α-[2-(aryloxy) ethylthio]-α-chloroacetates or by acid-catalyzed cyclizations of ethyl α-[2-(aryloxy) ethylsulfinyl]-acetate. 1, 2, 3, 5-Tetrahydro-4, 1- benzothiazepines were similarly prepared.