Nitric Acid → SINITRODIL,6-NITRO

Participants

Reaction Steps

50 ml of 100% fuming nitric acid were dropped into 50 g (0.21 mole) of 2,3-dihydro-3-(2'-nitrooxyethyl)-4H-1,3-benzoxazin-4-one, at a temperature of -10° C. At the end of the addition, the reaction mixture was stirred for minutes, then poured in ice and sequentially extracted with chloroform. The organic layer was washed with water, sodium hydroxide 0.1N and again with water, then dried over sodium sulphate and concentrated to dryness. The resulting oil was taken up with warm ethyl ether yielding 42.5 g of the title compound as white solid. m.p. 97°-99° C. (ethyl ether).

Provenance & Evidence