Benzaldehyde → 1-(2,6-Dimethoxyphenyl)-3-phenylprop-2-en-1-one

HRID 2113933

Reaktionsgleichung

Reaktionsgleichung von HRID 2113933
[CH:1](=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:9][C:10]([C:12]1[C:17]([O:18][CH3:19])=[CH:16][CH:15]=[CH:14][C:13]=1[O:20][CH3:21])=[O:11].[OH-].[Na+]>CO.O>[CH3:21][O:20][C:13]1[CH:14]=[CH:15][CH:16]=[C:17]([O:18][CH3:19])[C:12]=1[C:10](=[O:11])[CH:9]=[CH:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Komponenten

6

Edukt 3

HCID 240BenzaldehydeHCID 14798Sodium HydroxideHCID 162671-(2,6-Dimethoxyphenyl)ethanone

Produkt 1

HCID 2274471-(2,6-Dimethoxyphenyl)-3-phenylprop-2-en-1-one

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

(38) To a solution of benzaldehyde (295 mg, 2.77 mmol) and 2,6-dimethoxyacetophenone (500 mg, 2.77 mmol) in 4.1 ml of methanol was added 0.1 ml of 40% sodium hydroxide in water at 10° C. After stirring for 3 hour at room temperature, a solid appeared and was filtered. The precipitate was recrystallized from methanol to afford 371 mg (49.9%) of white flakes: mp 125.5-126.6° C. (lit. mp 123-124° C., Kuck and Grutzmacher, Org. Mass. Spect., 1978, 13, 90-102). 1H NMR (250 MHz) δ 7.55-7.51 (m, 2 H), 7.39-7.30 (m, 5H), 7.00-6.94 (d, 1 H), 6.64-6.61 (d, 2 H), 3.79 (s, 6 H); 13C NMR (62.7 MHz) 213.8, 176.1, 163.9, 153.4, 149.4, 149.0, 147.4, 147.3, 147.0, 122.6, 74.5 ppm.

Aufarbeitung

  1. filtrationwas filtered
  2. customThe precipitate was recrystallized from methanol
  3. customto afford 371 mg (49.9%) of white flakes

Quellen und Nachweise

ORD-Eintrag
ord-9179f5f4575e4ef0b5dda5afe357fb95
Quelldatensatz
uspto-grants-2008_10
Patentnummer
US07432303B2

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