Hydrochloric Acid → (1)Benzothieno(2,3-d)pyrimidin-4(1H)-one, 5,6,7,8-tetrahydro-2-methyl-

HRID 1013865

Reaktionsgleichung

Reaktionsgleichung von HRID 1013865
[NH2:1][C:2]1[S:3][C:4]2[CH2:15][CH2:14][CH2:13][CH2:12][C:5]=2[C:6]=1[C:7]([O:9]CC)=O.Cl.[CH3:17][C:18]#[N:19]>>[CH3:17][C:18]1[NH:19][C:7](=[O:9])[C:6]2[C:5]3[CH2:12][CH2:13][CH2:14][CH2:15][C:4]=3[S:3][C:2]=2[N:1]=1

Komponenten

4

Edukt 3

HCID 313Hydrochloric AcidHCID 6342AcetonitrileHCID 78262Ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

Produkt 1

HCID 209395(1)Benzothieno(2,3-d)pyrimidin-4(1H)-one, 5,6,7,8-tetrahydro-2-methyl-Ausbeute 62 %

Versuchsvorschrift

To a 25 ml flask was added 4 (225 mg, 1 mmol) and 10 ml CH3CN. HCl gas was passed through the solution for 3 h, before the solvent was evaporated under reduced pressure. The residue was dissolved in 10 mL distilled water and treated with ammonia water solution to generate a white precipitate. The precipitate was collected by filtration to afford 143 mg (62%) of 5 as a white solid: 1H NMR (DMSO-d6) δ 1.75 (m, 4H), 2.48 (s, 3H), 2.69 (m, 2H), 2.83 (m, 2H), 12.16 (s, 1H). Anal. (C11H12N2OS) m/z (ESI) 220.067811 [M]+.

Aufarbeitung

  1. customwas evaporated under reduced pressure
  2. dissolutionThe residue was dissolved in 10 mL
  3. distillationdistilled water
  4. additiontreated with ammonia water solution
  5. filtrationThe precipitate was collected by filtration

Quellen und Nachweise

ORD-Eintrag
ord-873b8fb5bcc44adfa7f54f34ff62c7c3
Quelldatensatz
uspto-grants-2011_07
Patentnummer
US07982035B2

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