反应详情

温度

75 °C

A mixture of 10 g of 3-(3-methoxyphenyl)-1,2,5,6-tetrahydropyridine hydrochloride, 100 ml of dimethylformamide, 14 g of sodium carbonate and 4.4 ml of chloromethyl cyclopropane was heated at 75° C. for 24 hours and was then cooled and diluted with water. The mixture was extracted with ethyl acetate and the organic phase was washed with water, dried and evaporated to dryness under reduced pressure. The residue was chromatographed over silica gel and was eluted with an 8-1-1 cyclohexane-chloroform-triethylamine mixture to obtain 9.25 g of 1-cyclopropylmethyl-3-(3-methoxyphenyl)-1,2,5,6-tetrahydropyridine.

1. temperaturewas then cooled
2. extractionThe mixture was extracted with ethyl acetate
3. washthe organic phase was washed with water
4. customdried
5. customevaporated to dryness under reduced pressure
6. customThe residue was chromatographed over silica gel
7. washwas eluted with an 8-1-1 cyclohexane-chloroform-triethylamine mixture