Phosphoric Acid → Quinacridone

HRID 377009

반응식

HRID 377009 반응식
[NH:1]([C:8]1[CH:16]=[C:15]([C:17]([OH:19])=[O:18])[C:14]([NH:20][C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)=[CH:13][C:9]=1[C:10]([OH:12])=[O:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.P(=O)(O)(O)O>O>[CH:24]1[CH:25]=[C:26]2[C:17]([C:15]3[C:14]([NH:20][C:21]2=[CH:22][CH:23]=1)=[CH:13][C:9]1[C:10]([C:7]2[C:2]([NH:1][C:8]=1[CH:16]=3)=[CH:3][CH:4]=[CH:5][CH:6]=2)=[O:11])=[O:18].[NH:1]([C:8]1[CH:16]=[C:15]([C:17]([OH:19])=[O:18])[C:14]([NH:20][C:21]2[CH:22]=[CH:23][CH:24]=[CH:25][CH:26]=2)=[CH:13][C:9]=1[C:10]([OH:12])=[O:11])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

5

반응물 2

HCID 1004Phosphoric AcidHCID 823512,5-Dianilinoterephthalic acid

생성물 2

HCID 13976QuinacridoneHCID 823512,5-Dianilinoterephthalic acid

시약·촉매·용매 1

HCID 962Water용매

실험 절차

It is important to drive the reaction far enough to react all of the 2,5-dianilinoterephthalic acid. Generally this takes about 1 hour at about 85° C., at which point the reaction is stopped by cooling and combining the mixture with water. The resulting solid, suspended in the dilute aqueous phosphoric acid, is filtered and washed with water until neutral. However, even under optimized conditions for cyclization, a minor amount of quinacridone, the by-product formed by double cyclization of the 2,5-dianilinoterephthalic acid, is obtained, i.e. ##STR6##

후처리

  1. customthe reaction far enough
  2. temperatureby cooling
  3. filtrationis filtered
  4. washwashed with water until neutral

출처 및 근거

ORD 기록
ord-2d4196352a644880ba02688a19d5fd5b
출처 데이터셋
uspto-grants-2000_02
특허 번호
US06022970

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