2,3-Dichloro-5,6-dicyano-1,4-benzoquinone → 9-[(Phenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

HRID 567261

Reaktionsgleichung

Reaktionsgleichung von HRID 567261
[C:1]1([CH2:7][N:8]2[C:20]3[CH2:19][CH2:18][CH2:17][C:16](=[O:21])[C:15]=3[C:14]3[C:9]2=[CH:10][CH:11]=[CH:12][C:13]=3[C:22]([O:24][CH3:25])=[O:23])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.ClC1C(=O)C(C#N)=C(C#N)C(=O)C=1Cl>C1(C)C=CC=CC=1>[C:1]1([CH2:7][N:8]2[C:20]3[CH:19]=[CH:18][CH:17]=[C:16]([OH:21])[C:15]=3[C:14]3[C:9]2=[CH:10][CH:11]=[CH:12][C:13]=3[C:22]([O:24][CH3:25])=[O:23])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Komponenten

4

Edukt 2

HCID 67752,3-Dichloro-5,6-dicyano-1,4-benzoquinoneHCID 223377289-[(phenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

Produkt 1

HCID 223377169-[(Phenyl)methyl]-4-hydroxy-5-carbomethoxy carbazoleAusbeute 28,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

A solution of the 9-[(phenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one (1.5 g, 4.5 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (1.12 g, 5.0 mM) in 25 mL of toluene was stirred between 80-90° C. for 6 h. The mixture was purified directly by column chromatography on silica gel (elution with methylene chloride/ethyl acetate) to afford 420 mg (28%) of the 9-[(phenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole as a yellow solid. 1H NMR (DMSO-d6) δ 10.25 (s, 1H), 7.7 (d, 1H, J=8 Hz), 7.4 (t, 1H, J=8 Hz), 7.4-7.0 (m, 8H), 6.6 (d, 1H, J=8 Hz), 5.6 (s, 2H), and 3.8 (s, 3H). IR (CHCl3, cm−1) 1723, 1685, 1621, 1597, 1568, 1496, 1453, 1442, 1392, 1286, 1267, 1156, and 1138. MS (ES) m/e 330, 332.

Aufarbeitung

  1. customThe mixture was purified directly by column chromatography on silica gel (elution with methylene chloride/ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-be6275ace7db4e6caefb37fd80b6cc34
Quelldatensatz
uspto-grants-2001_01
Patentnummer
US06177440B1

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