反应详情

96.9 ml hydrazine monohydrate was added to a mixture of 20 g 4-bromophthalic anhydride and 400 ml ethanol, and the mixture was heated under reflex for 8 hr. After cooling, the resulting precipitates were collected by filtration to give 28 g of 6-bromo-1,4-phthalazinedione.

1. temperaturethe mixture was heated under reflex for 8 hr
2. temperatureAfter cooling
3. customthe resulting precipitates
4. filtrationwere collected by filtration