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Communication | Special issue | Vol 52, No. 1, 2000, pp.111-116
Published online, 1st January, 1970
DOI: 10.3987/COM-99-S34
Sulfur-containing Heterocycles: Facile Synthesis of 4H-1,3-Thiazines by the Reaction of 3-N-Acylamino Ketones with Lawesson's Reagent

Mayuko Ori and Takehiko Nishio*

*Department of Chemistry, University of Tsukuba, Tsukuba-shi, Ibaraki, 305-8571, Japan

Abstract

The treatment of 3-N-acylamino ketones with Lawesson's reagent [LR: 2,4-bis(p-methoxyphenyl)-1,3,2, 4-dithiaphosphetane 2,4-disulfide] afforded the sulfur-containing heterocycles, 4H-1, 3-thiazines in moderate to good yields, along with the corresponding 3-N-thioacylamino ketones.