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- W2055141029 abstract "The versatile, hitherto unreported benzothiazol-2-ylcarbonylhydroximoyl chloride (2) was prepared by treatment of the corresponding sulfonium bromide 1 with sodium nitrite and hydrochloric acid in dioxane. Compound 2 reacts with o-aminothiophenol and with o-phenylenediamine to afford the new ketones 3 and 4, respectively. Oxidation of the latter with lead tetraacetate gave the benzotriazine derivative 7. Reaction of 2 with heterocyclic amines furnished the novel fused heterocycles 8, 9, 12, 14 and 16. Compound 2 reacted also with 2-methylthiobenzimidazole and gave the new heterocyclic system 18. Treatment of 2 with acrylonitrile, acrylamide and α-(benzothiazol-2-yl)cinnamonitrile (25) in the presence of triethylamine afforded the isoxazole derivatives 21, 23 and 27, respectively." @default.
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- W2055141029 date "1997-12-01" @default.
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- W2055141029 title "Synthesis and reactivity of benzothiazol-2-ylcarbonylhydroximoyl chloride, a versatile synthon" @default.
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- W2055141029 doi "https://doi.org/10.1016/s0040-4020(97)10194-6" @default.
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