Water → 3,4-Bis(2-morpholinoethoxy)bromobenzene

HRID 729872

Reaktionsgleichung

Reaktionsgleichung von HRID 729872
[H-].[Na+].[Br:3][C:4]1[CH:5]=[C:6]([OH:11])[C:7](=[CH:9][CH:10]=1)[OH:8].Cl.Cl[CH2:14][CH2:15][N:16]1[CH2:21][CH2:20][O:19][CH2:18][CH2:17]1.[OH2:22]>CN(C=O)C>[O:19]1[CH2:20][CH2:21][N:16]([CH2:15][CH2:14][O:11][C:6]2[CH:5]=[C:4]([Br:3])[CH:10]=[CH:9][C:7]=2[O:8][CH2:14][CH2:15][N:16]2[CH2:21][CH2:20][O:22][CH2:18][CH2:17]2)[CH2:17][CH2:18]1

Komponenten

6

Edukt 4

HCID 962WaterHCID 24758Sodium hydrideHCID 284874-BromocatecholHCID 77210Morpholine, 4-(2-chloroethyl)-, hydrochloride (1:1)

Produkt 1

HCID 670611913,4-Bis(2-morpholinoethoxy)bromobenzeneAusbeute 36 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

864 mg (36.0 mmol) of sodium hydride was added to a suspension of 900 mg (5.0 mmol) of 4-bromocatechol and 3.72 g (20.0 mmol) of 2-chloroethylmorpholine hydrochloride in 50 ml of anhydrous DMF at 0° C. over 25 minutes. The mixture was stirred for 3 days at room temperature. 5 ml water was added to quench the reaction. After removal of the solvent, the black oily residue was adsorbed onto celite and the resulting solid washed with ethyl acetate. The filtrate was then concentrated to give 0.75 g (1.81 mmol; 36% yield) of 3,4-bis (2-morpholinoethoxy)bromobenzene as a hygroscopic yellow solid. 1H-NMR (CD3OD) δ: 8.42 [1H] d (2.0 Hz), 8.18 [1H] d (1.5 Hz), 7.64 [1H] s, 7.56 [1H] dd (1.5 Hz, 7.5 Hz), 7.30 [1H] dt (1.5 Hz, 7.5 Hz), 7.25 [1H] d (2.5 Hz), 7.19 [1H] dd (2.5 Hz, 8.5 Hz), 7.12 [1H] d (8.5 Hz), 7.08 [1H] d (8.5 Hz), 7.05 [1H] dt (1 Hz, 7.5 Hz) 4.25 [2H] t (5.75 Hz), 4.20 [2H] t (5.5 Hz), 3.72 [8H] m, 2.84 [4H] m, 2.66 [8H] m. MS: 559.2 [MH+].

Aufarbeitung

  1. customto quench
  2. customthe reaction
  3. customAfter removal of the solvent
  4. washthe resulting solid washed with ethyl acetate
  5. concentrationThe filtrate was then concentrated

Quellen und Nachweise

ORD-Eintrag
ord-fd3f00ecbf9a48c2a4077d262bbcd660
Quelldatensatz
uspto-grants-2009_09
Patentnummer
US07582637B2

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