Tetrahedron Letters

Syntheses and thermal reactions of 2-alkyl (or aryl)-1-benzoyl-3, 4-dihydro-2-thianaphthalenes

M Hori, T Kataoka, H Shimizu, A Tomoto

Index: Hori, Mikio; Kataoka, Tadashi; Shimizu, Hiroshi; Tomoto, Akihiko Tetrahedron Letters, 1981 , vol. 22, # 37 p. 3629 - 3632

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Citation Number: 11

Abstract

Summary: 1-Benzoyl-2-methyl-3, 4-dihydro-2-thianaphthalene(4a) underwent novel intermolecular 1, 4-rearrangement in refluxing toluene to give an enol ether 5z while rearrangement of 2-phenyl derivative 4e proceeded intramolecularly in refluxing xylene to afford a 1, 4-rearranged enol ether 5b. 5 the other hand, ylides 4a-e were refluxed in alcohols to afford some ring-opened products 10_12.