Water → 3,4-dihydro-6-(3,4-dimethoxyphenyl)-1,3-dimethyl-4-(2,4,6-trimethylphenylimino)-2(1H)-pyrimidinone

HRID 65153

Reaktionsgleichung

Reaktionsgleichung von HRID 65153
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[NH:16][C:15](=[O:17])[N:14]([CH3:18])[C:13](=[N:19][C:20]3[C:25]([CH3:26])=[CH:24][C:23]([CH3:27])=[CH:22][C:21]=3[CH3:28])[CH:12]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10].[CH3:29]C(C)([O-])C.[K+].CI.O>CN(C)C=O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[N:16]([CH3:29])[C:15](=[O:17])[N:14]([CH3:18])[C:13](=[N:19][C:20]3[C:25]([CH3:26])=[CH:24][C:23]([CH3:27])=[CH:22][C:21]=3[CH3:28])[CH:12]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10]

Komponenten

6

Edukt 4

HCID 962WaterHCID 6328Methyl iodide2×HCID 23665647Potassium tert-butoxide2×HCID 178418505HCID 178418505, Verbindung

Produkt 1

HCID 98435333,4-dihydro-6-(3,4-dimethoxyphenyl)-1,3-dimethyl-4-(2,4,6-trimethylphenylimino)-2(1H)-pyrimidinoneAusbeute 80 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a suspension of 3,4-dihydro-6-(3,4-dimethoxyphenyl)-3-methyl-4-(2,4,6-trimethylphenylimino)-2(1H)-pyrimidinone (1.0 g) in N,N-dimethylformamide (10 ml) were added potassium tert-butoxide (0.38 g) and methyl iodide (0.33 ml) and the mixture was stirred at ambient temperature for 5 hours. To the reaction mixture were added additional potassium tertbutoxide (0.38 g) and methyl iodide (0.17 ml) and the mixture was stirred at ambient temperature for more 2 hours. The mixture was poured into water (100 ml) and the resulting precipitates were collected by filtration. The precipitate was recrystallized from a mixture of methanol and water (5:1) to give 3,4-dihydro-6-(3,4-dimethoxyphenyl)-1,3-dimethyl-4-(2,4,6-trimethylphenylimino)-2(1H)-pyrimidinone (0.83 g).

Aufarbeitung

  1. stirringthe mixture was stirred at ambient temperature for more 2 hours
  2. customthe resulting precipitates
  3. filtrationwere collected by filtration
  4. customThe precipitate was recrystallized from a mixture of methanol and water (5:1)

Quellen und Nachweise

ORD-Eintrag
ord-9f94689f6f864894b317e8471477a0dd
Quelldatensatz
uspto-grants-1986_09
Patentnummer
US04612376

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