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Acetyl chloride → 1-Acetyl-3-[2-[4-(2-methoxyphenyl)piperazin-1-yl]ethyl]thieno[3,4-d]pyrimidine-2,4-dione

HRID 652253
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 652253
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[N:9]1[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][N:17]2[C:22](=[O:23])[C:21]3=[CH:24][S:25][CH:26]=[C:20]3[NH:19][C:18]2=[O:27])[CH2:11][CH2:10]1.C(N(CC)CC)C.[C:35](Cl)(=[O:37])[CH3:36]>C(Cl)Cl>[C:35]([N:19]1[C:20]2=[CH:26][S:25][CH:24]=[C:21]2[C:22](=[O:23])[N:17]([CH2:16][CH2:15][N:12]2[CH2:11][CH2:10][N:9]([C:4]3[CH:5]=[CH:6][CH:7]=[CH:8][C:3]=3[O:2][CH3:1])[CH2:14][CH2:13]2)[C:18]1=[O:27])(=[O:37])[CH3:36]
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Komponenten

5

Edukt 3

HCID 6367Acetyl chlorideHCID 8471TriethylamineHCID 139112283-[2-[4-(2-Methoxyphenyl)piperazin-1-yl]ethyl]thieno[3,4-d]pyrimidine-2,4-dione

Produkt 1

HCID 139112701-Acetyl-3-[2-[4-(2-methoxyphenyl)piperazin-1-yl]ethyl]thieno[3,4-d]pyrimidine-2,4-dioneAusbeute 83,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344
Dichloromethane
Lösungsmittel

Versuchsvorschrift

A solution of 3-[2-[4-(2-methoxyphenyl)piperazin-1-yl]ethyl]thieno[3,4-d]pyrimidine-2,4-dione (1.0 g, 2.6 mmol) in methylene chloride (50 ml) was cooled by an external ice bath and triethylamine (0.393 g, 3.88 mmol) and acetyl chloride (0.305 g, 3.88 mmol) were added. After stirring for 1 hour, the mixture was warmed to room temperature and quenched with water (10 ml). The separated organic layer was washed with water and saturated brine and dried over magnesium sulfate. The solution was concentrated in vacuo, treated with toluene (10 ml) and reconcentrated to give the product (0.93 g, 83.5% yield) which was recrystallized from methylene chloride-hexanes to give the analytical sample as light brown crystals, mp 128°-129° C.

Aufarbeitung

  1. customquenched with water (10 ml)
  2. washThe separated organic layer was washed with water and saturated brine
  3. dry with materialdried over magnesium sulfate
  4. concentrationThe solution was concentrated in vacuo
  5. additiontreated with toluene (10 ml)

Quellen und Nachweise

ORD-Eintrag
ord-a301d79889914a248a73bdac9fd23b78
Quelldatensatz
uspto-grants-1987_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04670560

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