반응 #1069762

반응 방정식

1,5-dihydroxy-4,8-dinitroanthraquinone

phenol

→

anthraquinone

용매

sulfuric acid

반응 조건

후처리

1. 1
   기타Referring to FIG. 1d for the preparation of the blue dichroic dye, R9
2. 2
   기타The product is collected
3. 3
   workup.DISSOLUTIONdissolved in a solvent (such as acetone)

실험 절차

Referring to FIG. 1d for the preparation of the blue dichroic dye, R9 are defined as mentioned above. 1,5-dihydroxy-4,8-dinitroanthraquinone and H3BO3 are dissolved in concentrated sulfuric acid and allowed to react with phenol at a temperature between −5° C. and −10° C. The product is collected and dissolved in a solvent (such as acetone), then, potassium carbonate and 1-halo-alkane (may have a fluoride substitute, for example, 1-bromo-4-fluorobutane) are added and heated at 70° C. for reaction, forming an anthraquinone compound as shown in FIG. 1d, a blue dichroic dye.

출처