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

HRID 2113933

反応式

HRID 2113933 の反応式
[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

参加物

6

反応物 3

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

生成物 1

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

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 962Water溶媒

実験手順

(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.

後処理

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

出典と根拠

ORDレコード
ord-9179f5f4575e4ef0b5dda5afe357fb95
出典データセット
uspto-grants-2008_10
特許番号
US07432303B2

関連ノート

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