StartseiteMCPWorkbenchSkills
StartseiteWorkbenchBenachrichtigungenMein Bereich
llms.txt · MCP-AnleitungDatenschutz · Nutzungsbedingungen · Supportv1.8.0
  1. Startseite
  2. /Reaktion

Benzyl chloroformate → ((S)-5-bromo-indan-2-yl)-carbamic acid benzyl ester

HRID 42995
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 42995
CC1(C)[C@H]2CC[C@]1(CS(O)(=O)=O)C(=O)C2.[Br:16][C:17]1[CH:18]=[C:19]2[C:23](=[CH:24][CH:25]=1)[CH2:22][C@H:21]([NH2:26])[CH2:20]2.C(=O)([O-])[O-].[K+].[K+].Cl[C:34]([O:36][CH2:37][C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1)=[O:35]>CCOC(C)=O.O>[Br:16][C:17]1[CH:18]=[C:19]2[C:23](=[CH:24][CH:25]=1)[CH2:22][C@H:21]([NH:26][C:34](=[O:35])[O:36][CH2:37][C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1)[CH2:20]2
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 10387Benzyl chloroformateHCID 11430Potassium CarbonateHCID 46899972(S)-5-bromo-2,3-dihydro-1H-inden-2-amine ((1R,4S)-7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonate

Produkt 1

HCID 57831316((S)-5-bromo-indan-2-yl)-carbamic acid benzyl esterAusbeute 108 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962
Water
Lösungsmittel
2×
HCID 8857Ethyl AcetateLösungsmittel2×

Versuchsvorschrift

(S)-5-bromo-2,3-dihydro-1H-inden-2-amine((1R,4S)-7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonate (18.47 mmol, 8.21 g) was dissolved in EtOAc (30 mL)/water (30 mL) and potassium carbonate (55.4 mmol, 7.66 g) added. The mixture was cooled in an ice bath and benzyl chloroformate (20.32 mmol, 2.89 mL, 3.47 g) added dropwise. Stirring was continued overnight during which time the reaction came to room temperature. The crude reaction mixture was diluted with water and ethylacetate and the phases mixed and separated. The aqueous layer was further extracted with EtOAc (×2). Combined organics were dried and concentrated to give (S)-benzyl 5-bromo-2,3-dihydro-1H-inden-2-ylcarbamate as a colourless solid (6.89 g, 108%). 1H NMR (400 MHz, CDCl3) δ 2.79 (m, 2H) 3.26 (m, 2H) 4.53 (bm, 1H) 4.93 (bm, 1H) 5.10 (bs, 2H) 7.07 (m, 1H) 7.26-7.37 (m, 7H)

Aufarbeitung

  1. additionadded
  2. temperatureThe mixture was cooled in an ice bath
  3. customcame to room temperature
  4. customThe crude reaction mixture
  5. additionthe phases mixed
  6. customseparated
  7. extractionThe aqueous layer was further extracted with EtOAc (×2)
  8. customCombined organics were dried
  9. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-4020e718786a49f1ac78715d6048857f
Quelldatensatz
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08536214B2

Notizen zur Reaktion

Wird geladen…

Auf dieser SeiteKomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion