Pyridine → [2-Methoxy-1-(3-methylbutyl)-1,4-dihydronaphthalen-1-yl]methyl acetate

HRID 494659ノート

反応式

HRID 494659 の反応式
[CH3:1][O:2][C:3]1[C:4]([CH2:18][OH:19])([CH2:13][CH2:14][CH:15]([CH3:17])[CH3:16])[C:5]2[C:10]([CH2:11][CH:12]=1)=[CH:9][CH:8]=[CH:7][CH:6]=2.[C:20](OC(=O)C)(=[O:22])[CH3:21].N1C=CC=CC=1>O>[C:20]([O:19][CH2:18][C:4]1([CH2:13][CH2:14][CH:15]([CH3:16])[CH3:17])[C:5]2[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=2)[CH2:11][CH:12]=[C:3]1[O:2][CH3:1])(=[O:22])[CH3:21]

参加物

5

反応物 3

HCID 1049PyridineHCID 7918Acetic AnhydrideHCID 68871071[2-Methoxy-1-(3-methylbutyl)-1,4-dihydronaphthalen-1-yl]methanol

生成物 1

HCID 68872462[2-Methoxy-1-(3-methylbutyl)-1,4-dihydronaphthalen-1-yl]methyl acetate収率 81%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

A mixture of Example 179A (0.18 g, 0.7 mmol), acetic anhydride (0.2 mL), and pyridin (1 mL) was stirred at room temperature for 18 h. The solution was diluted with water (3 mL) and extracted with ethyl acetate (2× 1 mL). The combined organic extracts were dried (Na2SO4) and concentrated in vacuo. Column chromatography on silica (hexane to 5% ethyl acetate/hexane) afforded product as a colorless oil (0.17 g, 81%). 1H NMR (300 MHz, CDCl3) δ ppm 0.66 (m, 1H), 0.76 (dd, J=9.56, 6.62 Hz, 6H), 0.89 (m, 1H), 1.38 (m, 1H), 1.61 (m, 1H), 1.81 (s, 3H), 1.95 (m, 1H), 3.50 (s, 2H), 3.58 (s, 3H), 4.24 (d, J=10.66 Hz, 1H), 4.42 (d, J=10.66 Hz, 1H), 5.01 (t, J=3.49 Hz, 1H), 7.20 (m, 4H).

後処理

  1. extractionextracted with ethyl acetate (2× 1 mL)
  2. dry with materialThe combined organic extracts were dried (Na2SO4)
  3. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-37d9b5aab7394de896e5a43d1f195122
出典データセット
uspto-grants-2009_05
特許番号
US07538105B2

反応ノート

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