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Sodium Carbonate → Methyl [(3S)-5-(4-chlorophenyl)-7-(methyloxy)-2-thioxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]acetate

HRID 82017
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 82017
P12(SP3(SP(SP(S3)(S1)=S)(=S)S2)=S)=[S:2].C([O-])([O-])=O.[Na+].[Na+].[Cl:21][C:22]1[CH:27]=[CH:26][C:25]([C:28]2[C:34]3[CH:35]=[C:36]([O:39][CH3:40])[CH:37]=[CH:38][C:33]=3[NH:32][C:31](=O)[C@H:30]([CH2:42][C:43]([O:45][CH3:46])=[O:44])[N:29]=2)=[CH:24][CH:23]=1>ClCCCl>[Cl:21][C:22]1[CH:27]=[CH:26][C:25]([C:28]2[C:34]3[CH:35]=[C:36]([O:39][CH3:40])[CH:37]=[CH:38][C:33]=3[NH:32][C:31](=[S:2])[C@H:30]([CH2:42][C:43]([O:45][CH3:46])=[O:44])[N:29]=2)=[CH:24][CH:23]=1
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Komponenten

5

Edukt 3

HCID 10340Sodium CarbonateHCID 14817Phosphorus sulfide (P2S5)HCID 53261361(S)-methyl 2-(5-(4-chlorophenyl)-7-methoxy-2-oxo-2,3-dihydro-1H-benzo[e][1,4]diazepin-3-yl)acetate

Produkt 1

HCID 57465560Methyl [(3S)-5-(4-chlorophenyl)-7-(methyloxy)-2-thioxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]acetateAusbeute 98 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 11
1,2-Dichloroethane
Lösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

A suspension of P4S10 (36.1 g, 81.1 mmol) and Na2CO3 (8.6 g, 81.1 mmol) in 1,2-DCE (700 ml) at room temperature was stirred for 2 h before methyl [(3S)-5-(4-chlorophenyl)-7-(methyloxy)-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]acetate (for a preparation see Reference compound D) (16.8 g, 45.1 mmol) was added. The resulting mixture was stirred at 70° C. for 2 h before being cooled and filtered. The solid was washed twice with DCM and the filtrate washed with sat. Sodium hydrogen carbonate and brine. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified by flash-chromatography on silica gel (DOM/MeOH: 99/1) to afford the title compound (17.2 g, 98% yield) as a yellowish solid. LC/MS (Method D): m/z 389 [M(35Cl)+H]+, Rt 2.64 min

Aufarbeitung

  1. additionwas added
  2. temperaturebefore being cooled
  3. filtrationfiltered
  4. washThe solid was washed twice with DCM
  5. washthe filtrate washed with sat. Sodium hydrogen carbonate and brine
  6. dry with materialThe organic layer was dried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. customThe crude product was purified by flash-chromatography on silica gel (DOM/MeOH: 99/1)

Quellen und Nachweise

ORD-Eintrag
ord-2a3c374e71e44102b5618c275a7c91ef
Quelldatensatz
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08846709B2

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