反应详情

A methanol solution of 127 g of KOH was gradually added to a methanol solution of 210 g of phenyl 5-bromosalicylate prepared as in (2-1) above and 105 g of hydroxylamine hydrochloride. After stirring for 4 hours, the precipitate formed was collected by filtration. The precipitation was then suspended in water, and 60 ml of conc. hydrochloric acid (35%) was added thereto, followed by stirring for two hours to collect the precipitate by filtration followed by drying. Yield: 136 g.

1. customthe precipitate formed
2. filtrationwas collected by filtration
3. customThe precipitation
4. addition60 ml of conc. hydrochloric acid (35%) was added
5. stirringby stirring for two hours
6. customto collect the precipitate
7. filtrationby filtration
8. customby drying