O-Phenylenediamine → 2(1H)-Quinoxalinone, 3-(3,4-dihydroxy-5-nitrophenyl)-

HRID 274460

反応式

HRID 274460 の反応式
[OH:1][C:2]1[CH:3]=[C:4]([C:12](=O)[C:13]([O:15]CCCCCC)=O)[CH:5]=[C:6]([N+:9]([O-:11])=[O:10])[C:7]=1[OH:8].[C:23]1([NH2:30])[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=1[NH2:29]>CO>[OH:1][C:2]1[CH:3]=[C:4]([C:12]2[C:13](=[O:15])[NH:29][C:24]3[C:23]([N:30]=2)=[CH:28][CH:27]=[CH:26][CH:25]=3)[CH:5]=[C:6]([N+:9]([O-:11])=[O:10])[C:7]=1[OH:8]

参加物

4

反応物 2

HCID 7243O-PhenylenediamineHCID 5747978Benzeneacetic acid, 3,4-dihydroxy-5-nitro-alpha-oxo-, hexyl ester

生成物 1

HCID 1356653172(1H)-Quinoxalinone, 3-(3,4-dihydroxy-5-nitrophenyl)-

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

A mixture of 396.0 mg of n-hexyl 3,4-dihydroxy-5-nitrophenylglyoxylate and 137.6 mg of 1,2-phenylenediamine is heated to 120° for 60 minutes. Thereafter, the mixture is suspended in methanol, filtered under suction and recrystallized from N,N-dimethylformamide/water. There is obtained 3-(3,4-dihydroxy-5-nitrophenyl)-2(1H)-quinoxalinone of m.p. >300°.

後処理

  1. temperatureis heated to 120° for 60 minutes
  2. filtrationfiltered under suction
  3. customrecrystallized from N,N-dimethylformamide/water

出典と根拠

ORDレコード
ord-c245f17d7eed4973844b162fb366d595
出典データセット
uspto-grants-1995_02
特許番号
US05389653

関連ノート

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