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

Methyl chloroformate → Carbonic acid 3-(2,5-dimethyl-phenyl)-8-methoxy-2-oxo-1,8-diaza-spiro[4.5]dec-3-en-4-yl ester methyl ester

HRID 1962361
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1962361
[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([CH3:8])=[CH:4][C:3]=1[C:9]1[C:10](=[O:22])[NH:11][C:12]2([CH2:19][CH2:18][N:17]([O:20][CH3:21])[CH2:16][CH2:15]2)[C:13]=1[OH:14].C(N(C(C)C)C(C)C)C.Cl[C:33]([O:35][CH3:36])=[O:34]>ClC1C=CC=CC=1>[CH3:36][O:35][C:33](=[O:34])[O:14][C:13]1[C:12]2([CH2:19][CH2:18][N:17]([O:20][CH3:21])[CH2:16][CH2:15]2)[NH:11][C:10](=[O:22])[C:9]=1[C:3]1[CH:4]=[C:5]([CH3:8])[CH:6]=[CH:7][C:2]=1[CH3:1]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 6586Methyl chloroformateHCID 81531DiisopropylethylamineHCID 547422463-(2,5-Dimethyl-phenyl)-4-hydroxy-8-methoxy-1,8-diazaspiro[4.5]dec-3-en-2-one

Produkt 1

HCID 44603930Carbonic acid 3-(2,5-dimethyl-phenyl)-8-methoxy-2-oxo-1,8-diaza-spiro[4.5]dec-3-en-4-yl ester methyl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 7964
Chlorobenzene
Lösungsmittel
3×

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

To a solution of 200 mg of 3-(2,5-dimethyl-phenyl)-4-hydroxy-8-methoxy-1,8-diaza-spiro[4.5]dec-3-en-2-one and 0.14 ml of ethyl diisopropyl amine in 2 ml of chlorobenzene was added a solution of 66 mg of methyl chloroformate in 0.5 ml of chlorobenzene at 50° C. After stirring for 1 hour at 50° C., the reaction mixture was cooled to room temperature, diluted with 5 ml of chlorobenzene and washed with cold 5% aqueous sodium hydroxide and water. The organic phase was separated, dried over sodium sulfate, filtered and evaporated. The residue was purified by flash chromatography on silica gel. Yield: 120 mg of carbonic acid 3-(2,5-dimethyl-phenyl)-8-methoxy-2-oxo-1,8-diaza-spiro[4.5]dec-3-en-4-yl ester methyl ester (title compound A1). This material was triturated with ethyl acetate/hexane, filtered and dried to afford a solid, mp: 186-188° C.

Aufarbeitung

  1. temperaturethe reaction mixture was cooled to room temperature
  2. washwashed with cold 5% aqueous sodium hydroxide and water
  3. customThe organic phase was separated
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. customevaporated
  7. customThe residue was purified by flash chromatography on silica gel
  8. customThis material was triturated with ethyl acetate/hexane
  9. filtrationfiltered
  10. customdried
  11. customto afford a solid, mp: 186-188° C.

Quellen und Nachweise

ORD-Eintrag
ord-b57516b3cc474a2e9c2572dd222ecfd2
Quelldatensatz
uspto-grants-2013_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08415369B2

Notizen zur Reaktion

Wird geladen…

Auf dieser SeiteKomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion