✦ LIBER ✦

Synthesis and some reactions of 4-carboxy-2-thiazolylhydrazones

✍ Scribed by Z. A. Bredikhina; B. I. Buzykin; Yu. P. Kitaev

Publisher: Springer US
Year: 1991
Tongue: English
Weight: 687 KB
Volume: 27
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf00480845

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✦ Synopsis

Vl)

. Pyrrolidone (0.94 g, 11 mmole) and phosphorus oxychloride (1 ml, 11 mmole) were added to a solution of IV (3.45 g, 10 mmole) in dry dichloroethane (30 ml) and the reaction mixture was heated for 1.5 h. It was cooled, saturated aqueous sodium acetate solution (30 ml) added, and refluxed for 20 min. After cooling, the organic layer was separated, washed with water, and the dichloroethane distilled off. The residue was treated with alcohol, heated to reflux, cooled, and the precipitate filtered off to give VI (2 g). Found: M + 366. Calculated: M 366.

8-Hydr•xy-7-pheny

was prepared similarly to VI. Found: M + 394. Calculated: M 394.

LITERATURE CITED

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