Allyl iodide → 3-((2R,5R)-2-Allyl-5-cyclohexyl-3-oxo-morpholin-4-yl)-5-(3,3-dimethyl-but-1-ynyl)-thiophene-2-carboxylic acid methyl ester

HRID 579177ノート

反応式

HRID 579177 の反応式
[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]([C:23]#[C:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[CH:8][C:9]=1[N:10]1[C:15](=[O:16])[CH2:14][O:13][CH2:12][C@H:11]1[CH:17]1[CH2:22][CH2:21][CH2:20][CH2:19][CH2:18]1)=[O:4].[Li+].[CH3:30][CH:31]([N-]C(C)C)[CH3:32].C(I)C=C>C1COCC1>[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]([C:23]#[C:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[CH:8][C:9]=1[N:10]1[C@H:11]([CH:17]2[CH2:22][CH2:21][CH2:20][CH2:19][CH2:18]2)[CH2:12][O:13][C@H:14]([CH2:32][CH:31]=[CH2:30])[C:15]1=[O:16])=[O:4]

参加物

5

反応物 3

HCID 11166Allyl iodideHCID 2724682Lithium diisopropylamideHCID 666846883-((R)-3-Cyclohexyl-5-oxo-morpholin-4-yl)-5-(3,3-dimethyl-but-1-ynyl)-thiophene-2-carboxylic acid methyl ester

生成物 1

HCID 666842053-((2R,5R)-2-Allyl-5-cyclohexyl-3-oxo-morpholin-4-yl)-5-(3,3-dimethyl-but-1-ynyl)-thiophene-2-carboxylic acid methyl ester収率 9.1%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
-78 °C

実験手順

To a solution of 3-((R)-3-Cyclohexyl-5-oxo-morpholin-4-yl)-5-(3,3-dimethyl-but-1-ynyl)-thiophene-2-carboxylic acid methyl ester (600 mg, 1.49 mmol, 1.0 equiv) in THF (5.0 mL) at −78° C. was added LDA (0.82 mL, 2.0 M in THF, 1.64 mmol, 1.1 equiv) and the resulting solution was stirred at −78° C. for 20 minutes. To the solution was then added allyliodide (300 mg, 1.78 mmol, 1.2 equiv). The solution was warmed to room temperature and stirred at this temperature for 30 minutes. The reaction was quenched by addition of sat. aq. NH4Cl solution. The mixture was extracted with EtOAc. The organic layer was washed with brine, dried over Na2SO4 and concentrated. The residue was purified by silica gel column chromatography, EtOAc/heptane 25% to give 3-((2S,5R)-2-Allyl-5-cyclohexyl-3-oxo-morpholin-4-yl)-5-(3,3-dimethyl-but-1-ynyl)-thiophene-2-carboxylic acid methyl 140 mg, 3-((2R,5R)-2-Allyl-5-cyclohexyl-3-oxo-morpholin-4-yl)-5-(3,3-dimethyl-but-1-ynyl)-thiophene-2-carboxylic acid methyl ester 60 mg and mixed fraction 200 mg.

後処理

  1. temperatureThe solution was warmed to room temperature
  2. stirringstirred at this temperature for 30 minutes
  3. customThe reaction was quenched by addition of sat. aq. NH4Cl solution
  4. extractionThe mixture was extracted with EtOAc
  5. washThe organic layer was washed with brine
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated
  8. customThe residue was purified by silica gel column chromatography, EtOAc/heptane 25%

出典と根拠

ORDレコード
ord-1feffb9f819748e0a6ae215e49ca5d2e
出典データセット
uspto-grants-2015_05
特許番号
US09040690B2

反応ノート

読み込み中…