Triethylamine → 2,2-Dimethylpropionic acid 3-[2-(4-chlorophenyl)-5-ethylthiazol-4-yl]-4-oxobicyclo[3.2.1]oct-2-en-2-yl ester

HRID 45911ノート

反応式

HRID 45911 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[S:9][C:10]([CH2:23][CH3:24])=[C:11]([CH:13]3[C:19](=[O:20])[CH:18]4[CH2:21][CH:15]([CH2:16][CH2:17]4)[C:14]3=[O:22])[N:12]=2)=[CH:4][CH:3]=1.C(N(CC)CC)C.[C:32](Cl)(=[O:37])[C:33]([CH3:36])([CH3:35])[CH3:34]>ClCCl>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[S:9][C:10]([CH2:23][CH3:24])=[C:11]([C:13]3[C:14](=[O:22])[CH:15]4[CH2:21][CH:18]([CH2:17][CH2:16]4)[C:19]=3[O:20][C:32](=[O:37])[C:33]([CH3:36])([CH3:35])[CH3:34])[N:12]=2)=[CH:4][CH:3]=1

参加物

5

反応物 3

HCID 8471TriethylamineHCID 62493Pivaloyl chlorideHCID 667420403-[2-(4-Chlorophenyl)-5-ethylthiazol-4-yl]bicyclo[3.2.1]octane-2,4-dione

生成物 1

HCID 667425252,2-Dimethylpropionic acid 3-[2-(4-chlorophenyl)-5-ethylthiazol-4-yl]-4-oxobicyclo[3.2.1]oct-2-en-2-yl ester収率 81.2%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of the 3-[2-(4-chlorophenyl)-5-ethylthiazol-4-yl]bicyclo[3.2.1]octane-2,4-dione (100 mg, 0.28 mmol) in dichloromethane (5 ml) and triethylamine (140 μl, 1 mmol) is added pivaloyl chloride (123 μl, 1 mmol) at room temperature. The reaction mixture is stirred overnight at room temperature. Silica gel is added to the crude reaction mixture, the solvent is evaporated under reduced pressure and the residue is purified by flash chromatography on silica gel to give 2,2-dimethylpropionic acid 3-[2-(4-chlorophenyl)-5-ethylthiazol-4-yl]-4-oxobicyclo[3.2.1]oct-2-en-2-yl ester (101 mg)

後処理

  1. additionSilica gel is added to the crude
  2. customreaction mixture
  3. customthe solvent is evaporated under reduced pressure
  4. customthe residue is purified by flash chromatography on silica gel

出典と根拠

ORDレコード
ord-b8062e9ea055475da6b607c9867ff932
出典データセット
uspto-grants-2013_09
特許番号
US08541594B2

反応ノート

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