Color Reaction Product of Urea with Diacetyl Monoxime and Glucuronolactone. I. On the Reaction of Urea Derivatives with Diacetyl Monoxime and Glucuronolactone

Abstract

The chemical structures of the color reaction products (Ib and Ic) obtained from butyl-and p-tolyl-urea with diacetyl monoxime and glucuronolactone in phosphoric acid were elucidated by their physical properties. Ib develops immediately a red color in phosphoric acid and is thought to be one of the main reaction product or one of the main reaction intermediate responsible for the color reaction. Ib gave two kinds of diacetate, and their structures were also established.