Potassium Carbonate → 3-bromo-4-chloro-N-methyl-N-(2-{3-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-tetrazol-5-yl]-propoxy}-phenyl)-benzamide

HRID 1848622Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1848622
[Br:1][C:2]1[CH:3]=[C:4]([CH:24]=[CH:25][C:26]=1[Cl:27])[C:5]([N:7]([CH3:23])[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[O:14][CH2:15][CH2:16][CH2:17][C:18]1[NH:22][N:21]=[N:20][N:19]=1)=[O:6].[CH3:28][Si:29]([CH3:36])([CH3:35])[CH2:30][CH2:31][O:32][CH2:33]Cl.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[Br:1][C:2]1[CH:3]=[C:4]([CH:24]=[CH:25][C:26]=1[Cl:27])[C:5]([N:7]([CH3:23])[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[O:14][CH2:15][CH2:16][CH2:17][C:18]1[N:22]([CH2:33][O:32][CH2:31][CH2:30][Si:29]([CH3:36])([CH3:35])[CH3:28])[N:21]=[N:20][N:19]=1)=[O:6].[Br:1][C:2]1[CH:3]=[C:4]([CH:24]=[CH:25][C:26]=1[Cl:27])[C:5]([N:7]([CH3:23])[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[O:14][CH2:15][CH2:16][CH2:17][C:18]1[NH:22][N:21]([CH2:33][O:32][CH2:31][CH2:30][Si:29]([CH3:36])([CH3:35])[CH3:28])[NH:20][N:19]=1)=[O:6]

Komponenten

6

Edukt 3

HCID 11430Potassium CarbonateHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 178485344HCID 178485344, Verbindung

Produkt 2

HCID 686037923-bromo-4-chloro-N-methyl-N-(2-{3-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-tetrazol-5-yl]-propoxy}-phenyl)-benzamideHCID 686048533-bromo-4-chloro-N-methyl-N-(2-{3-[2-(2-trimethylsilanyl-ethoxymethyl)-1H-tetrazol-5-yl]-propoxy}-phenyl)-benzamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To 3-bromo-4-chloro-N-methyl-N-{2-[3-(1H-tetrazol-5-yl)-propoxy]-phenyl}-benzamide (1.90 g, 4.2 mmol) in DMF (20 mL) was added 2-(trimethylsilyl)ethoxymethyl chloride (0.89 mL, 5.1 mmol) in one portion, followed by addition of K2CO3 (1.16 g, 8.4 mmol). The mixture was stirred at room temperature for approximately 16 hrs and then was partitioned between ethyl acetate and water. The organic layer was separated, washed with water and brine, and was dried over MgSO4. The filtrate was then concentrated in vacuo and the residue purified by silica gel column chromatography (eluent: 30% ethyl acetate in hexane) to afford 3-bromo-4-chloro-N-methyl-N-(2-{3-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-tetrazol-5-yl]-propoxy}-phenyl)-benzamide and 3-bromo-4-chloro-N-methyl-N-(2-{3-[2-(2-trimethylsilanyl-ethoxymethyl)-1H-tetrazol-5-yl]-propoxy}-phenyl)-benzamide as two regioisomers (upper spot: 736 mg and lower spot: 785 mg). MS [M+H]+: 582.0; tR=2.92 min. (method 1) for upper spot and MS [M+H]+: 582.0; tR=2.75 min. (method 1) for lower spot.

Aufarbeitung

  1. customwas partitioned between ethyl acetate and water
  2. customThe organic layer was separated
  3. washwashed with water and brine
  4. dry with materialwas dried over MgSO4
  5. concentrationThe filtrate was then concentrated in vacuo
  6. customthe residue purified by silica gel column chromatography (eluent: 30% ethyl acetate in hexane)

Quellen und Nachweise

ORD-Eintrag
ord-acbd80b2fd44494293280e46ad6e55bf
Quelldatensatz
uspto-grants-2015_02
Patentnummer
US08952161B2

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