Tetrahedron letters

Non-stereospecific ring expansions of 5-membered heterocyclic sulfoxides

N Ueda, H Shimizu, T Kataoka, M Hori

Index: Ueda, Norihiro; Shimizu, Hiroshi; Kataoka, Tadashi; Hori, Mikio Tetrahedron Letters, 1984 , vol. 25, # 7 p. 757 - 760

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Citation Number: 13

Abstract

Abstract Non-stereospecific ring expansion reactions of 5-membered heterocyclic sulfoxides, 1, 3-benzoxathiole sulfoxides, 1, 3-benzodithiole sulfoxides, and 1, 3-dithiolane sulfoxides having a heteroatom at β-position to the sulfinyl group with acetic anhydride or p- toluenesulfonic acid are described together with thier reaction mechanism involving a sulfonium ion intermediate.

~10%

~10%

~68%

A one-pot synthesis of 1, 4-dithiins and 1, 4-benzodithiins ...

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Facile synthesis of substituted dihydro-1, 4-dithiins and-1,...

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2, 3-Dihydro-dithiin and-dithiepine-1, 1, 4, 4-tetroxides: s...

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