Toluene → HCID 131713380, compound
Reaction equation
C(OCCC1C=CC([C:14]2[CH2:19][CH2:18][CH:17]([C:20]3[CH:25]=[CH:24][C:23]([Br:26])=[CH:22][CH:21]=3)[CH2:16][CH:15]=2)=CC=1)CCC.C1(Cl)[C:33](=[O:34])[C:32](Cl)=[C:31](Cl)[C:29](=O)C=1Cl.[C:39]1(C)C(C)=CC=CC=1.[C:47]1([CH3:53])[CH:52]=[CH:51][CH:50]=[CH:49][CH:48]=1>>[CH2:33]([O:34][CH2:39][CH2:53][C:47]1[CH:52]=[CH:51][C:50]([C:16]2[C:17]([C:20]3[CH:25]=[CH:24][C:23]([Br:26])=[CH:22][CH:21]=3)=[CH:18][CH:19]=[CH:14][CH:15]=2)=[CH:49][CH:48]=1)[CH2:32][CH2:31][CH3:29]Participants
5
Procedure
A mixture of 1-[p-(β-butyloxyethyl)-phenyl]-4-(p-bromophenyl)-cyclohexene (XV) (55 g, 0.13 mol) obtained in Step H, chloranil (78.4 g, 0.32 mol) and xylene (624 ml) was heated and placed under reflux for 24 hours. After cooling, toluene (800 ml) was added, insoluble solid filtered off and toluene removed by concentrating the filtrate. The resulting raw crystals were recrystallized from ethyl acetate (50 ml) to obtain 4"-(β-butyloxyethyl)-4-bromoterphenyl (XV1) (29 g) having a melting point of 225.7°~227.0° C.
Workup
- temperaturewas heated
- temperatureunder reflux for 24 hours
- temperatureAfter cooling
- filtrationinsoluble solid filtered off
- customtoluene removed
- concentrationby concentrating the filtrate
- customThe resulting raw crystals were recrystallized from ethyl acetate (50 ml)
Sources & evidence
- ORD record
- ord-9bef4165fb134bdc9e8d48dc3e9c7a30
- Source dataset
- uspto-grants-1984_02
- Patent number
- US04431564
Reaction notes
Loading…