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Veratrylamine → 7-Chloro-5-(3,4-dimethoxybenzylamino)-2-(2-furyl)[1,2,4]triazolo[1,5-c]pyrimidine

HRID 1264871
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1264871
[Cl:1][C:2]1[N:7]=[C:6](SC)[N:5]2[C:10]([C:13]3[O:14][CH:15]=[CH:16][CH:17]=3)=[N:11][N:12]=[C:4]2[CH:3]=1.C1CCN2C(=NCCC2)CC1.[CH3:29][O:30][C:31]1[CH:32]=[C:33]([CH:36]=[CH:37][C:38]=1[O:39][CH3:40])[CH2:34][NH2:35]>C1COCC1>[Cl:1][C:2]1[N:7]=[C:6]([NH:35][CH2:34][C:33]2[CH:36]=[CH:37][C:38]([O:39][CH3:40])=[C:31]([O:30][CH3:29])[CH:32]=2)[N:12]2[N:11]=[C:10]([C:13]3[O:14][CH:15]=[CH:16][CH:17]=3)[N:5]=[C:4]2[CH:3]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 79832VeratrylamineHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 186137007-Chloro-3-(furan-2-yl)-5-(methylsulfanyl)[1,2,4]triazolo[4,3-c]pyrimidine

Produkt 1

HCID 155243237-Chloro-5-(3,4-dimethoxybenzylamino)-2-(2-furyl)[1,2,4]triazolo[1,5-c]pyrimidineAusbeute 74 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028
Tetrahydrofuran
Lösungsmittel

Versuchsvorschrift

Into 600 mL of THF, 50.0 g (188 mmol) of Compound B was dissolved, and 42.0 mL (280 mmol) of DBU was added thereto, followed by stirring at room temperature for about 30 minutes. During the period, crystals were precipitated from the reaction solution. Next, 94 g (563 mmol) of 3,4-dimethoxybenzylamine was added thereto, followed by stirring at 60° C. for about 2 hours. After completion of the reaction, the solvent was evaporated, the residue was diluted with chloroform and washed with water, and the organic layer was dried over magnesium sulfate. The solvent was evaporated, and the resulting residue was triturated with ethyl acetate to obtain 53.2 g of Compound D as a white solid (yield: 74%). The residue obtained by concentrating the solution part present after trituration was purified by silica gel column chromatography (hexane/ethyl acetate=7/3) to additionally recover Compound D in about 10% yield.

Aufarbeitung

  1. customDuring the period, crystals were precipitated from the reaction solution
  2. stirringby stirring at 60° C. for about 2 hours
  3. customAfter completion of the reaction
  4. customthe solvent was evaporated
  5. additionthe residue was diluted with chloroform
  6. washwashed with water
  7. dry with materialthe organic layer was dried over magnesium sulfate
  8. customThe solvent was evaporated
  9. customthe resulting residue was triturated with ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-bd1ee6bcbfdf425789578eed8c3421dd
Quelldatensatz
uspto-grants-2003_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06545000B1

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