Benzyl Alcohol → (7-Methoxy-4-oxo-1,4-dihydroquinolin-6-yl)carbamic acid benzyl ester

HRID 853386ノート

反応式

HRID 853386 の反応式
[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7](=[O:13])[CH:8]=[CH:9][NH:10]2)=[CH:5][C:4]=1C(O)=O.[CH2:17]([OH:24])[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.C1(P(N=[N+]=[N-])(C2C=CC=CC=2)=[O:32])C=CC=CC=1.C([N:44]([CH2:47]C)CC)C>CN(C)C=O.[Cl-].[Na+].O>[CH2:17]([O:24][C:47](=[O:32])[NH:44][C:4]1[CH:5]=[C:6]2[C:11](=[CH:12][C:3]=1[O:2][CH3:1])[NH:10][CH:9]=[CH:8][C:7]2=[O:13])[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1

参加物

7

反応物 4

HCID 244Benzyl AlcoholHCID 8471TriethylamineHCID 199401P,P-Diphenylphosphinic azideHCID 229364397-Methoxy-4-oxo-1,4-dihydroquinoline-6-carboxylic acid

生成物 1

HCID 58931364(7-Methoxy-4-oxo-1,4-dihydroquinolin-6-yl)carbamic acid benzyl ester

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 57417360Sodium chloride; water溶媒

反応条件

温度
95 °C

実験手順

After dissolving 7-methoxy-4-oxo-1,4-dihydroquinoline-6-carboxylic acid (2.58 g) in N,N-dimethylformamide (50 ml), there were added benzyl alcohol (3.29 ml), diphenylphosphoryl azide 2.51 ml) and triethylamine (1.63 ml), and the mixture was heated and stirred at 95° C. for 5 hours. The reaction solution was poured into saturated brine and extracted with ethyl acetate, and the organic layer was dried over magnesium sulfate and concentrated. The obtained residue was subjected to NH silica gel column chromatography and eluted with a solvent (ethyl acetate:methanol=5:1) to obtain the title compound (2.03 g) as a solid.

後処理

  1. temperaturethe mixture was heated
  2. extractionextracted with ethyl acetate
  3. dry with materialthe organic layer was dried over magnesium sulfate
  4. concentrationconcentrated
  5. washeluted with a solvent (ethyl acetate:methanol=5:1)

出典と根拠

ORDレコード
ord-2bf17836c1974cd883391368c6370f4c
出典データセット
uspto-grants-2007_08
特許番号
US07253286B2

反応ノート

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