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Hydrochloric Acid → 2,3-Dimethoxy-naphthacene-5,12-dione

HRID 1196139
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인쇄 미리보기

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HRID 1196139 반응식
F[C:2]1[C:19](F)=[CH:18][C:17]2[C:16](=[O:21])[C:15]3[C:6](=[CH:7][C:8]4[C:13]([CH:14]=3)=[CH:12][CH:11]=[CH:10][CH:9]=4)[C:5](=[O:22])[C:4]=2[CH:3]=1.[C:23]([O-:26])([O-])=O.[K+].[K+].[CH3:29][OH:30].Cl>CS(C)=O>[CH3:29][O:30][C:2]1[C:19]([O:26][CH3:23])=[CH:18][C:17]2[C:16](=[O:21])[C:15]3[C:6](=[CH:7][C:8]4[C:13]([CH:14]=3)=[CH:12][CH:11]=[CH:10][CH:9]=4)[C:5](=[O:22])[C:4]=2[CH:3]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 11430Potassium CarbonateHCID 200898342,3-Difluoronaphthacene-5,12-dione

생성물 1

HCID 111745752,3-Dimethoxy-naphthacene-5,12-dione

시약·촉매·용매 1

HCID 679Dimethyl Sulfoxide용매

실험 절차

1 g (3.4 mmol) of 2,3-difluoro-naphthacene-5,12-dione, 0.94 g (6.8 mmol) of K2CO3, 2.18 g of methanol and 20 ml of DMSO are stirred at 110° C. for 22 hours. The mixture is poured onto dilute hydrochloric acid. The product is filtered off, washed four times with water, dried and recrystallized from CH2Cl2 /pentane; yield 0.72 g (67%); melting point >250° C.

후처리

  1. filtrationThe product is filtered off
  2. washwashed four times with water
  3. customdried
  4. customrecrystallized from CH2Cl2 /pentane

출처 및 근거

ORD 기록
ord-bf7514fe072745cd8e0c063777e8ae96
출처 데이터셋
uspto-grants-1992_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05112977

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