反应详情

To a stirred and refluxing Grignard-complex, previously prepared starting from 98 parts of 1-(chloromethyl)-2,4-dichlorobenzene and 14 parts of magnesium in 70 parts of 1,1-oxybisethane, is added dropwise a solution of 46.5 parts of 2-(chloromethyl)oxirane in 350 parts of 1,1'-oxybisethane. Upon completion, stirring at reflux temperature is continued overnight. The reaction mixture is cooled in an ice-bath and decomposed by dropwise addition of 120 parts of a concentrated hydrochloric acid solution. The whole is poured onto water and the layers are separated. The organic phase is washed three times with water. The aqueous phase is extracted with 1,1'-oxybisethane. The combined organic phases are dried, filtered and evaporated. The residue is distilled, yielding 2,4-dichloro-α-(chloromethyl)benzenepropanol; bp. 130° C. at 0.04 mm. pressure.

1. temperaturerefluxing Grignard-complex
2. custompreviously prepared
3. stirringUpon completion, stirring
4. temperatureat reflux temperature
5. temperatureThe reaction mixture is cooled in an ice-bath
6. additionThe whole is poured onto water
7. customthe layers are separated
8. washThe organic phase is washed three times with water
9. extractionThe aqueous phase is extracted with 1,1'-oxybisethane
10. customThe combined organic phases are dried
11. filtrationfiltered
12. customevaporated
13. distillationThe residue is distilled