Tetrabutylammonium Fluoride → 2-[3-Benzyloxy-4-(1,1,4-trioxo-1,2,5-thiadiazolidin-2-yl)-phenyl]-cyclopropanecarboxylic Acid Ethyl Ester

HRID 660644ノート

反応式

HRID 660644 の反応式
[CH2:1]([O:3][C:4]([CH:6]1[CH2:8][CH:7]1[C:9]1[CH:14]=[CH:13][C:12]([N:15]2[CH2:19][C:18](=[O:20])[N:17](CC[Si](C)(C)C)[S:16]2(=[O:28])=[O:27])=[C:11]([O:29][CH2:30][C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[CH:10]=1)=[O:5])[CH3:2].CCCC[N+](CCCC)(CCCC)CCCC.[F-]>C1COCC1.CCOC(C)=O>[CH2:1]([O:3][C:4]([CH:6]1[CH2:8][CH:7]1[C:9]1[CH:14]=[CH:13][C:12]([N:15]2[CH2:19][C:18](=[O:20])[NH:17][S:16]2(=[O:27])=[O:28])=[C:11]([O:29][CH2:30][C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=2)[CH:10]=1)=[O:5])[CH3:2]

参加物

5

反応物 2

HCID 2724141Tetrabutylammonium FluorideHCID 688399182-{3-Benzyloxy-4-[1,1,4-trioxo-5-(2-trimethylsilanylethyl)-1,2,5-thiadiazolidin-2-yl]-phenyl}-cyclopropanecarboxylic Acid Ethyl Ester

生成物 1

HCID 688434952-[3-Benzyloxy-4-(1,1,4-trioxo-1,2,5-thiadiazolidin-2-yl)-phenyl]-cyclopropanecarboxylic Acid Ethyl Ester

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒2 回HCID 8857Ethyl Acetate溶媒

反応条件

温度
60 °C

実験手順

To 2-{3-benzyloxy-4-[1,1,4-trioxo-5-(2-trimethylsilanylethyl)-1,2,5-thiadiazolidin-2-yl]-phenyl}-cyclopropanecarboxylic acid ethyl ester (75 mg, 0.14 mmol) in THF (3 mL) is added 1M TBAF in THF (0.21 mL) and the solution is stirred at 60° C. for 2 h. The reaction is cooled to RT and diluted with EtOAc and washed with 1N HCl and brine. The organic layer is dried over MgSO4 and concentrated under reduced pressure to afford the title compound as a yellow oil, which is used in the next step without further purification: (M+H)+=448.

後処理

  1. temperatureThe reaction is cooled to RT
  2. washwashed with 1N HCl and brine
  3. dry with materialThe organic layer is dried over MgSO4
  4. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-45156971354f4dd3b0c217a724f12ccc
出典データセット
uspto-grants-2011_12
特許番号
US08084448B2

反応ノート

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