Nitric Acid → HCID 12393933, compound

Participants

Reaction Steps

To a solution of 10 ml. of concentrated sulfuric acid and 2 g. (0.022 mole) of 70% nitric acid was added over several minutes 2.3 g. (0.02 mole) of 3-methoxyisothiazole. The temperature rose to 40° C. and was controlled at that point by cooling. After stirring for 5 hours the reaction solution was poured into 30 ml. of ice-water to precipitate 0.5 g. (16%) of 4-nitro-3-methoxyisothiazole as a white solid, m.p. 118°-122° C.

Provenance & Evidence