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- W2094006428 abstract "Abstract Some 3-(1,2,3-thiadiazol-4-yl) coumarins (III) have been prepared from 3-acetyl coumarin semicarbazones (II) by treating the latter with thionyl chloride. Compounds II are obtained by interaction of 3-acetyl coumarins (I) with semicarbazide hydrochloride in pyridine. Certain condensed heterocycles such as 3-(6-hydroxythiazolo[3,2-a] benzimidazol-3-yl) coumarins (V) have also been prepared from condensation of 3-(2-amino-4-thiazolyl) coumarins with p-benzoquinone. The structures of these compounds have been established by elemental analysis and spectral data." @default.
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- W2094006428 date "1997-11-01" @default.
- W2094006428 modified "2023-09-25" @default.
- W2094006428 title "SYNTHESIS OF 3-(1,2,3-THIADIAZOL-4-YL) AND 3-(6-HYDROXYTHIAZOLO [3,2-a] BENZIMIDAZOL-3-YL) COUMARINS" @default.
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- W2094006428 doi "https://doi.org/10.1080/10426509708033708" @default.
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