The reactions of 5-(arylimino)-4-chloro-5H-1,2,3-dithiazo 1 with excess (6 equiv) bulky dialkylamines such as diethyl-, di-n-propyl-, and di-n-butylamines in CH2Cl2 at room temperature gave 5-(arylimino)-4-(dialkylamino)-5H-1,2,3-dithiazoles 5 in 18-76% yields. Compounds 5 are formed via (arylimino)cyanomethyl alkylamino disulfides 3. Nucleophilic addition of the amines to the carbon atom of the cyano group of 3 and subsequent cyclization afford 5.
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Tech Univ, St Petersburg State Inst Technol, St Petersburg 190013, RussiaUniv Jijel, Fac Exact Sci & Informat, Phytochem & Pharmacol Lab, Jijel 18000, Algeria
Pevzner, L. M.
Petrov, M. L.
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Tech Univ, St Petersburg State Inst Technol, St Petersburg 190013, RussiaUniv Jijel, Fac Exact Sci & Informat, Phytochem & Pharmacol Lab, Jijel 18000, Algeria
Petrov, M. L.
Stepakov, A. V.
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Tech Univ, St Petersburg State Inst Technol, St Petersburg 190013, Russia
St Petersburg State Univ, St Petersburg 190034, RussiaUniv Jijel, Fac Exact Sci & Informat, Phytochem & Pharmacol Lab, Jijel 18000, Algeria