Sodium Hydroxide → N-{5-(4-Chlorophenyl)pent-1-en-4-yl}-N-ethoxymethyl-3,5-dimethylbenzamide

HRID 264706

Reaktionsgleichung

Reaktionsgleichung von HRID 264706
[CH2:1]([O:3][CH2:4]Cl)[CH3:2].[Cl:6][C:7]1[CH:12]=[CH:11][C:10]([CH2:13][CH:14]([NH:18][C:19](=[O:28])[C:20]2[CH:25]=[C:24]([CH3:26])[CH:23]=[C:22]([CH3:27])[CH:21]=2)[CH2:15][CH:16]=[CH2:17])=[CH:9][CH:8]=1.[OH-].[Na+]>[Cl-].C([N+](CCCC)(CCCC)CCCC)C1C=CC=CC=1.ClCCl>[Cl:6][C:7]1[CH:12]=[CH:11][C:10]([CH2:13][CH:14]([N:18]([CH2:4][O:3][CH2:1][CH3:2])[C:19](=[O:28])[C:20]2[CH:25]=[C:24]([CH3:26])[CH:23]=[C:22]([CH3:27])[CH:21]=2)[CH2:15][CH:16]=[CH2:17])=[CH:9][CH:8]=1

Komponenten

6

Edukt 3

HCID 14798Sodium HydroxideHCID 18523Chloromethyl ethyl etherHCID 19035936N-{5-(4-chlorophenyl)pent-1-en-4-yl}-3.5-dimethylbenzamide

Produkt 1

HCID 19035912N-{5-(4-Chlorophenyl)pent-1-en-4-yl}-N-ethoxymethyl-3,5-dimethylbenzamide

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 159952Benzyltributylammonium chlorideKatalysatorHCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

2.36 ml (25.2 mmol) of chloromethyl ethyl ether are added in small portions over the course of 2 hours to a vigorously stirred solution of 5.5 g (16.8 mmol) of N-{5-(4-chlorophenyl)pent-1-en-4-yl}-3.5-dimethylbenzamide and 100 mg of benzyltributylammonium chloride in 15 ml of 50% strength aqueous sodium hydroxide solution and 15 ml of dichloromethane at 0°-5°. The organic phase is taken up in dichloromethane and water, the organic phase is separated off, dried over sodium sulfate and evaporated to dryness under reduced pressure. The oily residue is purified by chromatography on silica gel with ethyl acetate/hexane (1:4) as mobile phase; TLC (ethyl acetate/hexane; 1:3):Rf =0.50; 1H-NMR (300 MHz, CDCl3):mixture of rotamers, δ=7.31-7.18 (m, 4 H), 7.04-6.85 (m, 2.6 H), 6.42 (hr. s, 0.4 H), 5.92-5.60 (m, 1 H), 5.20-5.02 (m, 2 H), 4.54-4.24 (m, 2 H), 3.96-3.67 (m, 1 H), 3.25-2.40 (m, 6 H), 2.28 (s, ca 5 H), 2.24 (s, ca 1 H), 1.34-1.21(m, ca 0.5 H), 1.08 (t, J=7, ca 2.5 H).

Aufarbeitung

  1. customwater, the organic phase is separated off
  2. dry with materialdried over sodium sulfate
  3. customevaporated to dryness under reduced pressure
  4. customThe oily residue is purified by chromatography on silica gel with ethyl acetate/hexane (1:4) as mobile phase

Quellen und Nachweise

ORD-Eintrag
ord-fdce7d4e72c04bffb1204638a1122797
Quelldatensatz
uspto-grants-1997_07
Patentnummer
US05646144

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