Dimethylformamide → HCID 19068171、化合物

HRID 1957576ノート

反応式

HRID 1957576 の反応式
[OH:1][C:2]1[CH:6]=[C:5]([C:7]([O:9][CH3:10])=[O:8])[O:4][N:3]=1.[C:11]([N:18]1[CH2:23][CH2:22][CH:21]([CH2:24][CH2:25][CH2:26]I)[CH2:20][CH2:19]1)([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12].C([O-])([O-])=O.[Cs+].[Cs+].CN(C=O)C>CCOCC>[C:11]([N:18]1[CH2:19][CH2:20][CH:21]([CH2:24][CH2:25][CH2:26][O:1][C:2]2[CH:6]=[C:5]([C:7]([O:9][CH3:10])=[O:8])[O:4][N:3]=2)[CH2:22][CH2:23]1)([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12]

参加物

6

実験手順

A mixture of methyl 3-hydroxy-5-isoxazolecarboxylate (Aldrich) (3-5) (286 mg, 2.0 mmol), 3-4 (706 mg, 2.0 mmol), Cs2CO3 (650 mg, 2.0 mmol), and DMF (10 mL) was stirred at ambient temperature. After 72 hours the reaction mixture was diluted with ether and then washed with H2O and brine, dried (MgSO4), and concentrated. Flash chromatography (silica, 4% acetone/CH2Cl2) gave 3-6 as a colorless solid. Rf 0.54 (silica, 40 %EtOAc/hexanes).

後処理

  1. washwashed with H2O and brine
  2. dry with materialdried (MgSO4)
  3. concentrationconcentrated

出典と根拠

ORDレコード
ord-18110f652a764c16bd5b52672752c62f
出典データセット
uspto-grants-1998_07
特許番号
US05786373

反応ノート

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