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2-Chloroethyl methyl ether → 3-Isobutyryl-4-(2-methylphenylamino)-8-(2-methoxyethoxy)quinoline

HRID 1647483
ノート
印刷プレビュー

反応式

HRID 1647483 の反応式
[C:1]([C:6]1[CH:7]=[N:8][C:9]2[C:14]([C:15]=1[NH:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[CH3:23])=[CH:13][CH:12]=[CH:11][C:10]=2[OH:24])(=[O:5])[CH:2]([CH3:4])[CH3:3].CC(C)([O-])C.[K+].[CH3:31][O:32][CH2:33][CH2:34]Cl>O1CCCC1>[C:1]([C:6]1[CH:7]=[N:8][C:9]2[C:14]([C:15]=1[NH:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[CH3:23])=[CH:13][CH:12]=[CH:11][C:10]=2[O:24][CH2:34][CH2:33][O:32][CH3:31])(=[O:5])[CH:2]([CH3:4])[CH3:3]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 123162-Chloroethyl methyl etherHCID 103586453-Isobutyryl-4-(2-methylphenylamino) 8-hydroxyquinolineHCID 23665647Potassium tert-butoxide

生成物 1

HCID 100910673-Isobutyryl-4-(2-methylphenylamino)-8-(2-methoxyethoxy)quinoline収率 11.3%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

A mixture of 3-isobutyryl-4-(2-methylphenylamino)-8-hydroxyquinoline (5.0 g, 15.6 mmol), potassium t-butoxide (2.63 g, 23.4 mmol) and 2-chloroethyl methyl ether (2.85 ml, 31.2 mmol) in tetrahydrofuran (250 ml) was heated at reflux for 3 days, then the solvent evaporated. Water was added, the product extracted into dichloromethane, and the organic extracts dried and evaporated. Chromatography (silica gel, ethyl acetate/2% acetic acid/0-5% methanol) removed unchanged starting material, then further chromatography (silica gel, 1-1.5% methanol in dichloromethane) and crystallisation from petroleum ether (40-60) gave 3-isobutyryl-4-(2-methylphenylamino)-8-(2-methoxyethoxy)quinoline (0.67 g), m.p. 68°-70°.

後処理

  1. temperaturewas heated
  2. temperatureat reflux for 3 days
  3. customthe solvent evaporated
  4. additionWater was added
  5. extractionthe product extracted into dichloromethane
  6. customthe organic extracts dried
  7. customevaporated
  8. customChromatography (silica gel, ethyl acetate/2% acetic acid/0-5% methanol) removed unchanged
  9. customfurther chromatography (silica gel, 1-1.5% methanol in dichloromethane) and crystallisation from petroleum ether (40-60)

出典と根拠

ORDレコード
ord-92f84aedf12147db8ab4025ef0f00ecd
出典データセット
uspto-grants-1995_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05432182

反応ノート

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