Trifluoromethanesulfonic acid → 8-Isopropyl-6-oxo-5,6-dihydro-4H-2,5,10b-triaza-benzo[e]azulene-3-carboxylic Acid Ethyl Ester

HRID 351839ノート

反応式

HRID 351839 の反応式
[CH2:1]([O:3][C:4]([C:6]1[N:7]=[CH:8][N:9]2[C:15]=1[CH2:14][N:13](CC1C=CC(OC)=CC=1OC)[C:12](=[O:27])[C:11]1[CH:28]=[C:29]([CH:32]([CH3:34])[CH3:33])[CH:30]=[CH:31][C:10]2=1)=[O:5])[CH3:2].FC(F)(F)S(O)(=O)=O>C(Cl)Cl.FC(F)(F)C(O)=O>[CH2:1]([O:3][C:4]([C:6]1[N:7]=[CH:8][N:9]2[C:15]=1[CH2:14][NH:13][C:12](=[O:27])[C:11]1[CH:28]=[C:29]([CH:32]([CH3:33])[CH3:34])[CH:30]=[CH:31][C:10]2=1)=[O:5])[CH3:2]

参加物

5

反応物 2

HCID 62406Trifluoromethanesulfonic acidHCID 699231145-(2,4-Dimethoxy-benzyl)-8-isopropyl-6-oxo-5,6-dihydro-4H-2,5,10b-triaza-benzo[e]azulene-3-carboxylic Acid Ethyl Ester

生成物 1

HCID 699215768-Isopropyl-6-oxo-5,6-dihydro-4H-2,5,10b-triaza-benzo[e]azulene-3-carboxylic Acid Ethyl Ester

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 6422Trifluoroacetic acid溶媒

実験手順

5-(2,4-Dimethoxy-benzyl)-8-isopropyl-6-oxo-5,6-dihydro-4H-2,5,10b-triaza-benzo[e]azulene-3-carboxylic acid ethyl ester (410 mg, 0.9 mmol) was suspended in CH2Cl2 (3.0 mL), cooled in ice, and diluted slowly with trifluoroacetic acid (2.0 mL). The resulting solution was treated at 5° C. with trifluoromethanesulfonic acid (1.0 mL, 1.3 mmol). The red solution was stirred at room temperature for 2 h. The mixture was then evaporated and dissolved in CH2Cl2 (20 mL), washed with sodium hydrogen carbonate (10%, 2×5 mL) and the organic layer was dried (Na2SO4) and evaporated. Trituration with EtOAc. Yield: 250 mg (90%). m/z 313 (MH).

後処理

  1. temperaturecooled in ice
  2. customThe mixture was then evaporated
  3. dissolutiondissolved in CH2Cl2 (20 mL)
  4. washwashed with sodium hydrogen carbonate (10%, 2×5 mL)
  5. dry with materialthe organic layer was dried (Na2SO4)
  6. customevaporated

出典と根拠

ORDレコード
ord-6c820a6355104183b83d2eb490d9a0d3
出典データセット
uspto-grants-2004_06
特許番号
US06743789B2

反応ノート

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