Hydrochloric Acid → Quino[2,3-b]acridine-7,14-dione, 2,9-dichloro-5,12-dihydro-

HRID 399180

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HRID 399180 반응식
[Cl:1][C:2]1[CH:28]=[CH:27][C:5]([NH:6][C:7]2[CH:15]=[C:14]([C:16]([OH:18])=O)[C:13]([NH:19][C:20]3[CH:25]=[CH:24][C:23]([Cl:26])=[CH:22][CH:21]=3)=[CH:12][C:8]=2[C:9]([OH:11])=O)=[CH:4][CH:3]=1.[N+](C1C=CC=CC=1)([O-])=O.C(Cl)(=O)C1C=CC=CC=1.N1C2C(=CC=CC=2)C=CC=1.Cl.[OH-].[Na+]>>[CH:3]1[C:2]([Cl:1])=[CH:28][C:27]2[C:9]([C:8]3[C:7]([NH:6][C:5]=2[CH:4]=1)=[CH:15][C:14]1[C:16]([C:21]2[CH:22]=[C:23]([Cl:26])[CH:24]=[CH:25][C:20]=2[NH:19][C:13]=1[CH:12]=3)=[O:18])=[O:11]

참가 물질

7

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온도
200 °C

실험 절차

7.51 Parts of 2,5-di(p-chloroanilino)terephthalic acid obtained in Example 13, 79 parts of nitrobenzene, 6 parts of benzoyl chloride and 1.65 parts of quinoline were charged into a 200-ml flask of stainless steel, and maintained at 200° C. for 5 hours. When the mixture was temperature-increased up to about 180° C., hydrochloric acid gas was generated and the intramolecular-dehydration reaction was initiated. The reaction mixture was cooled to 110° C., and then 2.27 parts of 30% sodium hydroxide was dropwise added to decompose an excess of benzoyl chloride. Then, the reaction mixture was filtered while it was hot, washed with methanol, washed with water and dried to give 6.37 parts (92.8% of the theoretical yield) of 2,9-dichloroquinacridone.

후처리

  1. temperatureWhen the mixture was temperature-increased up to about 180° C.
  2. customthe intramolecular-dehydration reaction
  3. temperatureThe reaction mixture was cooled to 110° C.
  4. filtrationThen, the reaction mixture was filtered while it
  5. washwashed with methanol
  6. washwashed with water
  7. customdried
  8. customto give 6.37 parts (92.8% of the

출처 및 근거

ORD 기록
ord-0c0f4d937e10468ebfdd72967b0e924d
출처 데이터셋
uspto-grants-1998_10
특허 번호
US05817817

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