5-Trifluoromethyl-6-vinyl-1,3-dihydro-isoindole-2-carboxylic acid tert-butyl ester → 5-Ethyl-6-trifluoromethyl-1,3-dihydro-isoindole-2-carboxylic acid tert-butyl ester

HRID 225594ノート

反応式

HRID 225594 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:16][C:15]2[C:10](=[CH:11][C:12]([CH:21]=[CH2:22])=[C:13]([C:17]([F:20])([F:19])[F:18])[CH:14]=2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]>CO.[Pd]>[C:1]([O:5][C:6]([N:8]1[CH2:9][C:10]2[C:15](=[CH:14][C:13]([C:17]([F:20])([F:18])[F:19])=[C:12]([CH2:21][CH3:22])[CH:11]=2)[CH2:16]1)=[O:7])([CH3:2])([CH3:3])[CH3:4]

参加物

4

反応物 1

HCID 577533965-Trifluoromethyl-6-vinyl-1,3-dihydro-isoindole-2-carboxylic acid tert-butyl ester

生成物 1

HCID 577535725-Ethyl-6-trifluoromethyl-1,3-dihydro-isoindole-2-carboxylic acid tert-butyl ester収率 20%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 887Methanol溶媒

実験手順

To a stirred solution 0.54 mmol 5-trifluoromethyl-6-vinyl-1,3-dihydro-isoindole-2-carboxylic acid tert-butyl ester in 50 ml methanol was added 50 mg 10% palladium on charcoal and the mixture was stirred under an atmosphere of hydrogen (0.6 bar positive pressure) for 72 h. The reaction mixture was then filtered and the filtrate was concentrated in vacuo. The residue was purified by chromatography (SiO2, heptane/ethyl acetate) to yield the title compound as a white solid (20% yield). MS (m/e): 260.0 ([M+H−Me2C═CH2]+, 100%).

後処理

  1. filtrationThe reaction mixture was then filtered
  2. concentrationthe filtrate was concentrated in vacuo
  3. customThe residue was purified by chromatography (SiO2, heptane/ethyl acetate)

出典と根拠

ORDレコード
ord-93e5d97d604e41a2a274c3447199d777
出典データセット
uspto-grants-2009_07
特許番号
US07557114B2

反応ノート

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