p-Toluenesulfonic acid → 1-(3,5-Dichloro-2-hydroxyphenyl)-1-(5-fluoro-2-hydroxy phenyl) ethane
Reaktionsgleichung
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[C:4]([CH:9](O)[CH3:10])[C:3]=1[OH:12].[F:13][C:14]1[CH:19]=[CH:18][C:17]([OH:20])=[CH:16][CH:15]=1.C1(C)C=CC(S(O)(=O)=O)=CC=1>>[Cl:1][C:2]1[C:3]([OH:12])=[C:4]([CH:9]([C:18]2[CH:19]=[C:14]([F:13])[CH:15]=[CH:16][C:17]=2[OH:20])[CH3:10])[CH:5]=[C:6]([Cl:8])[CH:7]=1Komponenten
4
Versuchsvorschrift
2,4-Dichloro-6-(1'-hydroxyethyl)phenol (10 g) was added in small portions to a melt of 4-fluoro phenol containing a trace of p-toluenesulphonic acid at 90° over a half hour period. The reaction mixture was stirred for a further 1/2 hr and cooled. The crystallization from benzene gave 1-(3,5-dichloro-2-hydroxyphenyl)-1-(5-fluoro-2-hydroxy phenyl) ethane (11 g, m.p. 150°).
Aufarbeitung
- temperaturecooled
- customThe crystallization from benzene
Quellen und Nachweise
- ORD-Eintrag
- ord-4d6eda3be389445bb7fc8801d6871bf2
- Quelldatensatz
- uspto-grants-1979_08
- Patentnummer
- US04163801
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