Analytical Chemistry

Identification of a chromogen in the assay of hippuric acid with acetic anhydride, pyridine, and 4-(dimethylamino) benzaldehyde

K Hirota, M Ikeda, M Kawase, S Ohmori

文献索引：Hirota, Kazuhiro; Ikeda, Mikiko; Kawase, Michi; Ohmori, Shinji Analytical Chemistry, 1981 , vol. 53, # 13 p. 2087 - 2090

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被引用次数: 2

摘要

A yellow chromogen, formed In the assay system for hlppuric acld which conslsts of acetic anhydrlde, pyridine, and 4-(dl-methylamlno) benzaldehyde, was Isolated, and the structure was deterrnlned to be 44 1-acetyld (1 H)-pyrldylidene)-2-phenyi-2oxazolln5-one. The structure was conflrmed by the chemlcal converslon to known compounds as well as by NMR spectra. The converslon was accornpllshed by hydrolysls of the chromogen to 44 ( ...