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4-Methylpiperidine → 9-Methyl-6-(4-methyl-1-piperidinyl)-1,2-dihydrobenzo[b]pyrrolo[3,2,1-jk][1,4]benzodiazepine

HRID 4015
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 4015
[CH3:1][C:2]1[CH:19]=[CH:18][C:5]2[N:6]3[CH2:17][CH2:16][C:15]4[C:7]3=[C:8]([CH:12]=[CH:13][CH:14]=4)[C:9](=O)[NH:10][C:4]=2[CH:3]=1.[CH3:20][CH:21]1[CH2:26][CH2:25][NH:24][CH2:23][CH2:22]1>[Ti](Cl)(Cl)(Cl)Cl.C1(C)C=CC=CC=1>[CH3:1][C:2]1[CH:19]=[CH:18][C:5]2[N:6]3[CH2:17][CH2:16][C:15]4[C:7]3=[C:8]([CH:12]=[CH:13][CH:14]=4)[C:9]([N:24]3[CH2:25][CH2:26][CH:21]([CH3:20])[CH2:22][CH2:23]3)=[N:10][C:4]=2[CH:3]=1
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Komponenten

5

Edukt 2

HCID 693814-MethylpiperidineHCID 138232849-Methyl-1,2dihydrobenzo[b]pyrrolo[3,2,1-jk][1,4]benzodiazepin-6-one

Produkt 1

HCID 138233049-Methyl-6-(4-methyl-1-piperidinyl)-1,2-dihydrobenzo[b]pyrrolo[3,2,1-jk][1,4]benzodiazepine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 24193Titanium TetrachlorideKatalysatorHCID 1140Toluene
Lösungsmittel

Versuchsvorschrift

A stirred mixture of 6.26 g (0.0250 mole) of 9-methyl-1,2-dihydrobenzo[b]pyrrolo[3,2,1-jk][1,4]benzodiazepin-6-one and 1000 ml of toluene was heated under nitrogen until a solution resulted. Then there was added 24.8 g (0.250 mole) of 4-methylpiperidine, followed by 14.2 g (0.075 mole) of titanium tetrachloride. The mixture was heated under reflux for three hours, cooled to room temperature and filtered. The filtrate was stirred with 500 ml of 2N sodium hydroxide solution for 15 minutes and the layers were separated. The aqueous phase was extracted with 250 ml of toluene. The toluene layers were combined, washed once with 2N sodium hydroxide solution, twice with water, dried over anhydrous sodium sulfate, filtered, and concentrated in vacuo to 8.1 g (98%) of product. Recrystallization from ethyl acetate provided the analytical sample, mp 194°-196° C.

Aufarbeitung

  1. temperaturewas heated under nitrogen until a solution
  2. customresulted
  3. temperatureThe mixture was heated
  4. temperatureunder reflux for three hours
  5. filtrationfiltered
  6. customthe layers were separated
  7. extractionThe aqueous phase was extracted with 250 ml of toluene
  8. washwashed once with 2N sodium hydroxide solution, twice with water
  9. dry with materialdried over anhydrous sodium sulfate
  10. filtrationfiltered
  11. concentrationconcentrated in vacuo to 8.1 g (98%) of product
  12. customRecrystallization from ethyl acetate
  13. customprovided the analytical sample, mp 194°-196° C.

Quellen und Nachweise

ORD-Eintrag
ord-79f898b6c1714467beaef2298d35c83d
Quelldatensatz
uspto-grants-1988_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04723007

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