Formaldehyde → (S)-2-Methyl-11-[3-(2-methoxy-ethyl)-4-methyl-piperazin-1-yl]-5H-dibenzo[b,e][1,4]diazepine

HRID 131424Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 131424
[CH3:1][C:2]1[CH:26]=[CH:25][C:5]2[NH:6][C:7]3[CH:24]=[CH:23][CH:22]=[CH:21][C:8]=3[N:9]=[C:10]([N:11]3[CH2:16][CH2:15][NH:14][C@@H:13]([CH2:17][CH2:18][O:19][CH3:20])[CH2:12]3)[C:4]=2[CH:3]=1.C=O.[C:29](O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[CH3:1][C:2]1[CH:26]=[CH:25][C:5]2[NH:6][C:7]3[CH:24]=[CH:23][CH:22]=[CH:21][C:8]=3[N:9]=[C:10]([N:11]3[CH2:16][CH2:15][N:14]([CH3:29])[C@@H:13]([CH2:17][CH2:18][O:19][CH3:20])[CH2:12]3)[C:4]=2[CH:3]=1

Komponenten

5

Edukt 3

HCID 712FormaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 10043488(S)-2-methyl-11-[3-(2-methoxy-ethyl)-piperazin-1-yl]-5H-dibenzo[b,e][1,4]diazepine

Produkt 1

HCID 10090200(S)-2-Methyl-11-[3-(2-methoxy-ethyl)-4-methyl-piperazin-1-yl]-5H-dibenzo[b,e][1,4]diazepineAusbeute 89 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 111,2-DichloroethaneLösungsmittel

Versuchsvorschrift

Combine (S)-2-methyl-11-[3-(2-methoxy-ethyl)-piperazin-1-yl]-5H-dibenzo[b,e][1,4]diazepine (300.0 mg, 0.86 mmol), formaldehyde (76.4 μL, 0.94 mmol, 37% in water), and 1,2-dichloroethane (28.0 ml) and stir the mixture at ambient temperature for 5 minutes and add sodium triacetoxyborohydride (272.1 mg, 1.28 mmol). After stirring for 30 minutes at ambient temperature, quench the reaction with saturated sodium bicarbonate. Remove the organic portion, extract the aqueous with dichloromethane and combine, wash (brine), dry (sodium sulfate), and reduce the extracts to residue. Purify the residue on silica gel using dichloromethane/methanol (90:10) to give 260.4 mg (89%) of a yellow foam: mp=60° C., dec; mass spectrum (ion spray): m/z=365.2 (M+1).

Aufarbeitung

  1. customquench
  2. customthe reaction with saturated sodium bicarbonate
  3. customRemove the organic portion
  4. extractionextract the aqueous with dichloromethane and combine
  5. washwash (brine)
  6. dry with materialdry (sodium sulfate)
  7. customPurify the residue on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-ceb78179fa2b42db89f686fdff220453
Quelldatensatz
uspto-grants-2008_06
Patentnummer
US07384934B2

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