1,1-Dibromoethane → 1,2-Diphenyl-1-[4-(2-bromoethoxy)phenyl]-1-buten-4-ol

HRID 982442Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 982442
[C:1]1(/[C:7](/[C:18]2[CH:23]=[CH:22][C:21]([OH:24])=[CH:20][CH:19]=2)=[C:8](/[C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)\[CH2:9][CH2:10][OH:11])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Br:25][CH:26](Br)[CH3:27].C(=O)([O-])[O-].[K+].[K+]>C(C(C)=O)C>[C:1]1([C:7]([C:18]2[CH:19]=[CH:20][C:21]([O:24][CH2:27][CH2:26][Br:25])=[CH:22][CH:23]=2)=[C:8]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH2:9][CH2:10][OH:11])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Komponenten

5

Versuchsvorschrift

A mixture containing 31.6 g of (Z)-1,2-diphenyl-1-(4-hydroxyphenyl)-1-buten-4-ol, 93.9 g of dibromoethane, 20.7 g of anhydrous potassium carbonate and 250 ml of methyl ethyl ketone is refluxed for 24 h. The inorganic salts are removed by filtration followed by evaporating the solvent and recrystallizing from methanol. The yield is 17.3 g (41%) and m.p. 133°-7° C.

Aufarbeitung

  1. temperatureis refluxed for 24 h
  2. customThe inorganic salts are removed by filtration
  3. customby evaporating the solvent
  4. customrecrystallizing from methanol

Quellen und Nachweise

ORD-Eintrag
ord-779fa5d296e14f008aece5d991d133c1
Quelldatensatz
uspto-grants-1991_02
Patentnummer
US04996225

Notizen zur Reaktion

Wird geladen…