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4-Aminobenzoic Acid → 2,6-Di(tertiary-butyl)-4-(4'-carboxyphenylimino)-2,5-cyclohexadien-l-one

HRID 260367
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HRID 260367 반응식
[C:1]([C:5]1[C:6](=[O:16])[C:7]([C:12]([CH3:15])([CH3:14])[CH3:13])=[CH:8][C:9](=O)[CH:10]=1)([CH3:4])([CH3:3])[CH3:2].[NH2:17][C:18]1[CH:26]=[CH:25][C:21]([C:22]([OH:24])=[O:23])=[CH:20][CH:19]=1.B(F)(F)F>O1CCCC1>[C:1]([C:5]1[C:6](=[O:16])[C:7]([C:12]([CH3:15])([CH3:14])[CH3:13])=[CH:8][C:9](=[N:17][C:18]2[CH:26]=[CH:25][C:21]([C:22]([OH:24])=[O:23])=[CH:20][CH:19]=2)[CH:10]=1)([CH3:4])([CH3:3])[CH3:2]
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참가 물질

5

반응물 3

HCID 9784-Aminobenzoic AcidHCID 6356Boron trifluorideHCID 128672,6-Di-t-butyl-p-benzoquinone

생성물 1

HCID 152945432,6-Di(tertiary-butyl)-4-(4'-carboxyphenylimino)-2,5-cyclohexadien-l-one

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

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온도
20 °C

실험 절차

A mixture of 22 g (0.10 mole) of 2,6-di(tertiary-butyl)-p-benzoquinone, 13.7 g (0.10 mole) of 4-aminobenzoic acid, 175 ml of tetrahydrofuran and 1 ml of boron trifluoride: diethyl ether complex was heated on a steam bath for 1.25 hours. The mixture was allowed to cool to about 20° C. over 16 hours under a nitrogen atmosphere. Evaporation provided a solid which was washed with hexane and recrystallized from ethanol to provide orange solid 2,6-di(tertiary-butyl)-4-(4'-carboxyphenylimino)-2,5-cyclohexadien-1-one, m.p. 305°-309° C. Analysis: Calculated for C21H25NO3 : % C, 74.3; % H, 7.4; % N, 4.1; Found: % C, 74.2; % H, 7.4; % N, 4.1.

후처리

  1. temperaturediethyl ether complex was heated on a steam bath for 1.25 hours
  2. customEvaporation
  3. customprovided a solid which
  4. washwas washed with hexane
  5. customrecrystallized from ethanol

출처 및 근거

ORD 기록
ord-0de60a7c748e4c88aa19c0870d40d5ee
출처 데이터셋
uspto-grants-1996_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05527824

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