1970
DOI: 10.1002/chin.197010343
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ChemInform Abstract: HETEROCYCLISCHE VERBINDUNGEN VON ZUCKERN 2. MITT. DARST. VON 2‐POLYHYDROXYALKYLTHIAZOL‐ UND ‐BENZOTHIAZOLDERIVATEN

Abstract: Die Addition von Hydrogensulfid an die entsprechenden acetylierten Aldonitrile liefert in 63‐88%iger Ausbeute die Thioamide (I) bis (IV), von denen (I) mit dem Chlorid (V) bzw. (III) mit dem Bromid (VII) zu den Thiazolen (VI) (27%) bzw. (VIII) (23%) reagiert.

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“…A solution of the residue in benzene was treated with fuller's earth and charcoal and concentrated to give syrupy crude [0.271 g, 55%; tlc benzene/ethyl acetate (1:1) almost homogeneous] or crystalline benzothiazole 2a (0.140 g, 28%), mp 132.5° (from anhydrous ethanol/hexane), identical (mp, tlc, ir) with an authentic [30] compound. 8, [1,3]benzothiazol-10(5aH)-one 5-Oxide (4) and 6-(2-Benzothiazolyl)-2,3-dimethoxybenzoic Acid (5).…”
Section: Procedures Bmentioning
confidence: 99%
“…A solution of the residue in benzene was treated with fuller's earth and charcoal and concentrated to give syrupy crude [0.271 g, 55%; tlc benzene/ethyl acetate (1:1) almost homogeneous] or crystalline benzothiazole 2a (0.140 g, 28%), mp 132.5° (from anhydrous ethanol/hexane), identical (mp, tlc, ir) with an authentic [30] compound. 8, [1,3]benzothiazol-10(5aH)-one 5-Oxide (4) and 6-(2-Benzothiazolyl)-2,3-dimethoxybenzoic Acid (5).…”
Section: Procedures Bmentioning
confidence: 99%