Chlorosuccinimide → HCID 136337205, Verbindung

HRID 1891207Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1891207
[F:1][C:2]1[CH:3]=[CH:4][C:5]([OH:28])=[C:6]([C:8]2[N:13]=[C:12]([N:14]3[C:18]([C:19]([F:22])([F:21])[F:20])=[C:17]([C:23]([O:25][CH2:26][CH3:27])=[O:24])[CH:16]=[N:15]3)[CH:11]=[CH:10][CH:9]=2)[CH:7]=1.[Cl:29]N1C(=O)CCC1=O>C(#N)C.C(Cl)Cl>[Cl:29][C:4]1[C:5]([OH:28])=[C:6]([C:8]2[N:13]=[C:12]([N:14]3[C:18]([C:19]([F:22])([F:21])[F:20])=[C:17]([C:23]([O:25][CH2:26][CH3:27])=[O:24])[CH:16]=[N:15]3)[CH:11]=[CH:10][CH:9]=2)[CH:7]=[C:2]([F:1])[CH:3]=1

Komponenten

5

Versuchsvorschrift

To a solution of the title compound from Example 2 Step B (1.50 g, 3.79 mmol) in acetonitrile (9.5 mL) was added N-chlorosuccinimide (760 mg, 5.69 mmol), and the resulting mixture was placed in a pre-heated oil bath (90° C.). After 1 h, the reaction mixture was allowed to cool to room temperature, then was diluted with DCM, and the resulting mixture was washed with brine. The organic phase was then concentrated in vacuo. Purification by chromatography on silica gel (0 to 30% EtOAc in hexanes, then 30 to 100% EtOAc in hexanes) provided the title compound: LCMS m/z 429.9 [M+H]+; 1H NMR (500 MHz, CDCl3) δ 12.50 (s, 1H), 8.18 (s, 1H, 8.14 (t, J=8.0 Hz, 1H), 7.99 (d, J=8.0 Hz, 1H), 7.58 (d, J=8.0 Hz, 1H), 7.46 (dd, J=9.0, 3.0 Hz, 1H), 7.25 (dd, J=9.0, 3.0 Hz, 1H), 4.40 (q, J=7.0 Hz, 2H), 1.40 (t, J=7.0 Hz, 3H).

Aufarbeitung

  1. customthe resulting mixture was placed in a pre-heated oil bath
  2. custom(90° C.)
  3. washthe resulting mixture was washed with brine
  4. concentrationThe organic phase was then concentrated in vacuo
  5. customPurification by chromatography on silica gel (0 to 30% EtOAc in hexanes

Quellen und Nachweise

ORD-Eintrag
ord-87c41715bf964e01b82f46b36846b6f2
Quelldatensatz
uspto-grants-2013_08
Patentnummer
US08507512B2

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