반응 #1463490

반응 방정식

bromine

bromine

water

sodium sulfite

bromine

EPAQ

1-(1-ethylpropylamino)anthraquinone

→

1-(1-ethylpropylamino)-4-bromoanthraquinone

용매

acetic acid

acetic acid

반응 조건

후처리

1. 1
   workup.ADDITIONwas added
2. 2
   기타The aqueous solution was decanted off
3. 3
   workup.DISSOLUTIONThe solid was dissolved in methylene chloride
4. 4
   농축concentrated
5. 5
   workup.ADDITIONslowly added to cold methanol, whereupon a solid
6. 6
   기타precipitated

실험 절차

EPAQ (20.02 g) was dissolved in hot acetic acid. In a separate flask, bromine (12.03 g) was dissolved in acetic acid (ca. 10 mL). The bromine solution was slowly added to the dye solution. The reaction was allowed to proceed for 1/2 hour, with occasional shaking. The reaction mixture was poured into water (600 mL), and aqueous sodium sulfite was added to discharge the bromine. The aqueous solution was decanted off. The solid was dissolved in methylene chloride, then concentrated, and slowly added to cold methanol, whereupon a solid precipitated.

출처