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Lawesson's reagent → tert-butyl (6R,7R)-6-(2-amino-2-thioxoethyl)-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate

HRID 1022709
ノート
印刷プレビュー

反応式

HRID 1022709 の反応式
[NH2:1][C:2](=O)[CH2:3][C@H:4]1[C@H:10]([C:11]2[CH:16]=[CH:15][C:14]([Cl:17])=[C:13]([Cl:18])[CH:12]=2)[O:9][CH2:8][CH2:7][N:6]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:5]1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:36])=CC=1.C(=O)([O-])O.[Na+]>C1COCC1>[NH2:1][C:2](=[S:36])[CH2:3][C@H:4]1[C@H:10]([C:11]2[CH:16]=[CH:15][C:14]([Cl:17])=[C:13]([Cl:18])[CH:12]=2)[O:9][CH2:8][CH2:7][N:6]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:5]1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 87949Lawesson's reagentHCID 516892Sodium BicarbonateHCID 66976771tert-butyl (6R,7R)-6-(2-amino-2-oxoethyl)-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate

生成物 1

HCID 86663871tert-butyl (6R,7R)-6-(2-amino-2-thioxoethyl)-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate収率 52.6%

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒

反応条件

温度
70 °C

実験手順

To a solution of tert-butyl (6R,7R)-6-(2-amino-2-oxoethyl)-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate (528 mg, 1.31 mmol) in THF (6 mL) was added Lawesson's reagent (794 mg, 1.96 mmol), and the mixture was stirred at 70° C. for 2.5 hr. To the reaction mixture was added aqueous sodium hydrogen carbonate solution, and the mixture was extracted with ethyl acetate. The extract was washed with brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography to give the title compound (289 mg).

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-b37be795f45848149a18fe99d7eb2b99
出典データセット
uspto-grants-2014_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08722662B2

反応ノート

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