Water → 1,3-Diethyl-5-{bis[(1,3-diethyl-1H-imidazo[4,5-b]quinoxalin-2-(3H)-ylidene)methyl]methylene}-2-thiobarbituric acid

HRID 1679503Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1679503
Cl([O-])(=O)(=O)=O.[CH2:6]([N+:8]1[C:12]2=[N:13][C:14]3[C:19]([N:20]=[C:11]2[N:10]([CH2:21][CH3:22])[C:9]=1[C:23]#[C:24][CH:25]=[C:26]1[N:38]([CH2:39][CH3:40])[C:29]2=[N:30][C:31]4[C:36]([N:37]=[C:28]2[N:27]1[CH2:41][CH3:42])=[CH:35][CH:34]=[CH:33][CH:32]=4)=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH3:7].[CH2:43]([N:45]1[C:52](=[O:53])[CH2:51][C:49](=[O:50])[N:48]([CH2:54][CH3:55])[C:46]1=[S:47])[CH3:44].C(N(CC)CC)C.O>CN(C)C=O>[CH2:54]([N:48]1[C:49](=[O:50])[C:51](=[C:24]([CH:25]=[C:26]2[N:27]([CH2:41][CH3:42])[C:28]3=[N:37][C:36]4[C:31]([N:30]=[C:29]3[N:38]2[CH2:39][CH3:40])=[CH:32][CH:33]=[CH:34][CH:35]=4)[CH:23]=[C:9]2[N:10]([CH2:21][CH3:22])[C:11]3=[N:20][C:19]4[C:14]([N:13]=[C:12]3[N:8]2[CH2:6][CH3:7])=[CH:15][CH:16]=[CH:17][CH:18]=4)[C:52](=[O:53])[N:45]([CH2:43][CH3:44])[C:46]1=[S:47])[CH3:55]

Komponenten

6

Edukt 4

HCID 962WaterHCID 8471TriethylamineHCID 788901,3-Diethyl-2-thiobarbituric acidHCID 867347981,3-diethyl-2-[(1,3-diethyl-1H-imidazo[4,5-b]quinoxalin-2-(3H)-ylidene)-1-propynyl]imidazo[4,5-b]quinoxalinium perchlorate

Produkt 1

HCID 203629651,3-Diethyl-5-{bis[(1,3-diethyl-1H-imidazo[4,5-b]quinoxalin-2-(3H)-ylidene)methyl]methylene}-2-thiobarbituric acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A mixture of 1,3-diethyl-2-[(1,3-diethyl-1H-imidazo[4,5-b]quinoxalin-2-(3H)-ylidene)-1-propynyl]imidazo[4,5-b]quinoxalinium perchlorate) 0.33 g, 0.0005 mol) of Example 1, 1,3-diethyl-2-thiobarbituric acid (0.11 g, 0.0005 mol) and triethylamine (0.10 g, 0.001 mol) in dimethylformamide (5 ml), is heated at reflux for 30 seconds. After cooling the solution is diluted to 20 ml. with water. The dye is collected and washed with water. After recrystallization from acetonitrile, the yield of purified dye is 0.27 g (79%) - mp. indistinct.

Aufarbeitung

  1. temperatureis heated
  2. temperatureat reflux for 30 seconds
  3. temperatureAfter cooling the solution
  4. additionis diluted to 20 ml
  5. customThe dye is collected
  6. washwashed with water
  7. customAfter recrystallization from acetonitrile

Quellen und Nachweise

ORD-Eintrag
ord-f516f954c8934001a9087647f7007e25
Quelldatensatz
uspto-grants-1978_03
Patentnummer
US04080496

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