N,N,N',N'-Tetramethylazodicarboxamide → {6-[5-(4-Trifluoromethoxy-phenyl)-pent-4-ynyloxy]-indol-1-yl}-acetic acid ethyl ester

HRID 751180

Reaktionsgleichung

Reaktionsgleichung von HRID 751180
[CH2:1]([O:3][C:4](=[O:16])[CH2:5][N:6]1[C:14]2[C:9](=[CH:10][CH:11]=[C:12]([OH:15])[CH:13]=2)[CH:8]=[CH:7]1)[CH3:2].[F:17][C:18]([F:33])([F:32])[O:19][C:20]1[CH:25]=[CH:24][C:23]([C:26]#[C:27][CH2:28][CH2:29][CH2:30]O)=[CH:22][CH:21]=1.C(P(CCCC)CCCC)CCC.CN(C)C(N=NC(N(C)C)=O)=O>O1CCCC1>[CH2:1]([O:3][C:4](=[O:16])[CH2:5][N:6]1[C:14]2[C:9](=[CH:10][CH:11]=[C:12]([O:15][CH2:30][CH2:29][CH2:28][C:27]#[C:26][C:23]3[CH:24]=[CH:25][C:20]([O:19][C:18]([F:17])([F:32])[F:33])=[CH:21][CH:22]=3)[CH:13]=2)[CH:8]=[CH:7]1)[CH3:2]

Komponenten

6

Versuchsvorschrift

To an ice cold solution of (6-hydroxy-indol-1-yl)-acetic acid ethyl ester (100 mg, 455 μmol), 5-(4-trifluoromethoxy-phenyl)-pent-4-yn-1-ol (111 mg, 455 μmol) and tributylphosphine (160 μl, 546 μmol) in tetrahydrofuran (10 ml) was added N,N,N′,N′-tetramethyl azodicarboxamide (94 mg, 546 μmol). The cooling bath was removed and stirring continued for 14 h. The mixture was filtered over celite and the solvent removed under reduced pressure to give a yellow oil which was purified by column chromatography (silica gel, heptane/AcOEt) to obtain 65 mg (150 μmol, 32%) of the title compound as colorless oil.

Aufarbeitung

  1. customThe cooling bath was removed
  2. filtrationThe mixture was filtered over celite
  3. customthe solvent removed under reduced pressure
  4. customto give a yellow oil which
  5. customwas purified by column chromatography (silica gel, heptane/AcOEt)

Quellen und Nachweise

ORD-Eintrag
ord-4bc37d558c684ffb9b7c36d389bdd448
Quelldatensatz
uspto-grants-2008_07
Patentnummer
US07405236B2

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