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Phthalimide → (R)-tert-butyl 3-(1,3-dioxoisoindolin-2-yl)-3-(3-fluoro-4-(trifluoromethyl)phenyl)propylcarbamate

HRID 2279534
ノート
印刷プレビュー

反応式

HRID 2279534 の反応式
[F:1][C:2]1[CH:3]=[C:4]([C@@H:12](O)[CH2:13][CH2:14][NH:15][C:16](=[O:22])[O:17][C:18]([CH3:21])([CH3:20])[CH3:19])[CH:5]=[CH:6][C:7]=1[C:8]([F:11])([F:10])[F:9].[C:24]1(=[O:34])[C:32]2[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=2)[C:26](=[O:33])[NH:25]1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CCOC(/N=N/C(OCC)=O)=O>C1COCC1>[O:34]=[C:24]1[C:32]2[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=2)[C:26](=[O:33])[N:25]1[C@@H:12]([C:4]1[CH:5]=[CH:6][C:7]([C:8]([F:11])([F:10])[F:9])=[C:2]([F:1])[CH:3]=1)[CH2:13][CH2:14][NH:15][C:16](=[O:22])[O:17][C:18]([CH3:21])([CH3:20])[CH3:19]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 6809PhthalimideHCID 11776TriphenylphosphineHCID 5462977Diethyl azodicarboxylateHCID 86705528(S)-tert-butyl 3-(3-fluoro-4-(trifluoromethyl)phenyl)-3-hydroxypropylcarbamate

生成物 1

HCID 68294223(R)-tert-butyl 3-(1,3-dioxoisoindolin-2-yl)-3-(3-fluoro-4-(trifluoromethyl)phenyl)propylcarbamate収率 42.4%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

実験手順

To a solution of 286 (0.600 g, 1.78 mmol) and THF (15 mL) cooled to 0° C. was added isoindoline-1,3-dione (0.288 g, 1.96 mmol) and PPh3 (0.700 g, 2.67 mmol) followed by the dropwise addition of a THF (6 mL) solution of DEAD (0.420 mL, 2.67 mmol). The reaction was warmed to RT and stirred for 20 h. The reaction was concentrated, triturated with ether and filtered. The resulting filtrate was poured into water and extracted with DCM. The combined organic extracts were dried (MgSO4), filtered, and concentrated in vacuo. The crude product was purified by SiO2 chromatography eluting with hexane/EtOAc (4:1) to afford 0.350 g (42.4%) of (R)-tert-butyl 3-(1,3-dioxoisoindolin-2-yl)-3-(3-fluoro-4-(trifluoromethyl)phenyl)propylcarbamate (288).

後処理

  1. concentrationThe reaction was concentrated
  2. customtriturated with ether
  3. filtrationfiltered
  4. additionThe resulting filtrate was poured into water
  5. extractionextracted with DCM
  6. dry with materialThe combined organic extracts were dried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customThe crude product was purified by SiO2 chromatography
  10. washeluting with hexane/EtOAc (4:1)

出典と根拠

ORDレコード
ord-6400453aeb9d44c089f94e9dd0a73f93
出典データセット
uspto-grants-2015_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09133187B2

反応ノート

読み込み中…

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