Carbon Tetrachloride → HCID 18650842, compound
Reaction equation
O[C@@H:2]([CH3:21])[CH2:3][C@@H:4]([CH3:20])[O:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]2[CH:19]=[CH:18][C:15]([C:16]#[N:17])=[CH:14][CH:13]=2)=[CH:8][CH:7]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C(Cl)(Cl)(Cl)[Cl:42]>>[Cl:42][C@@H:2]([CH3:21])[CH2:3][C@H:4]([CH3:20])[O:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]2[CH:19]=[CH:18][C:15]([C:16]#[N:17])=[CH:14][CH:13]=2)=[CH:8][CH:7]=1Participants
4
Procedure
1.8 g of the (R,S)-4-[4'-(3"-hydroxy-1"-methylbutoxy)phenyl]benzonitrile obtained in the above Example 1 was dissolved in 36 ml of carbon tetrachloride. 3.0 g of triphenylphosphine was added thereto and the obtained mixture was stirred under reflux for five hours. After distilling off the solvent, the residue was extracted with n-hexane and desolvated. The obtained residue was purified by silica gel column chromatography with the use of a mixture of n-hexane and diethyl ether (9:1) as a developing solvent. Thus, 1.50 g of (S ,S) -4-[4'-(3"-chloro-1"-methylbutoxy)phenyl]benzonitrile was obtained.
Workup
- temperatureunder reflux for five hours
- distillationAfter distilling off the solvent
- extractionthe residue was extracted with n-hexane
- customThe obtained residue was purified by silica gel column chromatography with the use of a mixture of n-hexane and diethyl ether (9:1) as a developing solvent
Sources & evidence
- ORD record
- ord-240ca7af105f4bceb5a0d821f1f69436
- Source dataset
- uspto-grants-1995_03
- Patent number
- US05401436
Reaction notes
Loading…