反应详情

3,4-Methylenedioxynitrosobenzene (1.05 g, 6.9 mmol) was dissolved in dichloromethane (20 ml). After the addition of cyanamide (0.42 g, 9.9 mmol) and N-bromosuccinimide (1.8 g, 9.9 mmol) the mixture was stirred at ambient temperature overnight. The resulting mixture was filtered and evaporated to dryness. Column chromatography on silica using 1:1 petroleum ether: ethyl acetate as eluant yielded 1.1 g 3,4-methylenedioxyphenyl-ONN-azoxycyanide as a yellow solid, m.pt. 145°-147° C. (Yield: 82.7% of theoretical).

1. filtrationThe resulting mixture was filtered
2. customevaporated to dryness