Tetrahedron

Synthesis of 1, 2-benzisothiazolin-3-ones by ring transformation of 1, 3-benzoxathiin-4-one 1-oxides

…, T Shimazaki, T Yoshida, W Ando, T Konakahara

Index: Shimizu, Masao; Shimazaki, Teruaki; Yoshida, Tetsuya; Ando, Wataru; Konakahara, Takeo Tetrahedron, 2012 , vol. 68, # 21 p. 3932 - 3936

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Citation Number: 2

Abstract

1, 2-Benzisothiazolin-3-ones were synthesized from 1, 3-benzoxathiin-4-one 1-oxides by means of a nonhazardous and inexpensive method. The 1, 3-benzoxathiin-4-one 1-oxides were prepared by oxidation of 1, 3-benzoxathiin-4-ones with hydrogen peroxide in the presence of a catalyst. Attack of amines on the carbonyl groups of the 1, 3-benzoxathiin-4- one 1-oxides and subsequent elimination of carbonyl compounds likely produced sulfenic ...