反应详情

2-(1,2,5-Thiadiazol-3-yl)glyoxylic acid (7.4 g.) and hydroxylamine hydrochloride (3.1 g.) were reacted in the presence of magnesium hydroxide (4.7 g.) according to a similar manner to that of Example 6(a)(3) to give 2-hydroxyimino-2-(1,2,5-thiadiazol-3-yl)acetic acid (syn isomer) (7.5 g.).