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Sodium hydride-induced cyclization of 1-[(isocyanomethyl)sulfonyl]-4-methylbenzene or ethyl isocyanoacetate with various xanthate esters gave 5-alkoxy-4-tosylthiazoles or ethyl 5-alkoxythiazol-4-ylcarboxylates, respectively, in good to excellent yields. The xanthate ester S-methyl O-phenyl dithiocarbonate gave… Click to show full abstract
Sodium hydride-induced cyclization of 1-[(isocyanomethyl)sulfonyl]-4-methylbenzene or ethyl isocyanoacetate with various xanthate esters gave 5-alkoxy-4-tosylthiazoles or ethyl 5-alkoxythiazol-4-ylcarboxylates, respectively, in good to excellent yields. The xanthate ester S-methyl O-phenyl dithiocarbonate gave 5-(methylsulfanyl)-4-tosyl-1,3-thiazole when treated with 1-[(isocyanomethyl)sulfonyl]-4-methylbenzene under similar conditions.
Journal Title: Synlett
Year Published: 2017
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