2,3,5-Trimethylphenol → 2,3,5-Trimethyl-phenyl ethyl ether
Reaktionsgleichung
[Cl-].[CH2:2]([O:4][C:5]1[CH:30]=[C:29]([CH3:31])[C:8](C[P+](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=[C:7]([CH3:32])[C:6]=1[CH3:33])[CH3:3].CC1C(C)=CC(C)=CC=1O>>[CH2:2]([O:4][C:5]1[CH:30]=[C:29]([CH3:31])[CH:8]=[C:7]([CH3:32])[C:6]=1[CH3:33])[CH3:3]Komponenten
3
Versuchsvorschrift
The 4-ethoxy-2,3,6-trimethyl-benzyl-triphenylphosphonium chloride employed as the starting material is prepared by the procedure described in Example 18 by alkylation of 2,3,5-trimethylphenol to give 2,3,5-trimethyl-phenyl ethyl ether (melting point 93°-95° C.), by haloformylation of the ether obtained to give 4-ethoxy-2,3,6-trimethyl-benzyl chloride (melting point 63°-64° C.) and by reaction of the latter compound with triphenylphosphine.
Aufarbeitung
- customis prepared by the procedure