反应详情

4-Sulfo-1,8-naphthalic anhydride potassium salt (2.0 g, 6.2 mmol) and hydroxylamine hydrochloride (0.9 g, 12.4 mmol) were reacted in pyridine (50 mL) following the procedure of Example 1. The solids formed were filtered, washed with ethanol, and dried to give 2.1 g of the title compound, mp>380° C.;

1. customThe solids formed
2. filtrationwere filtered
3. washwashed with ethanol
4. customdried