反应详情

温度

210 °C

A mixture of 1-(allyloxy)-2-chloro-4-nitrobenzene (55.2 g) and N,N-diethylaniline (50.0 mL) was stirred at 210° C. for 6 hours, and then followed by stirring at 175° C. overnight. At room temperature, the pH of the reaction mixture was adjusted to 1 by the addition of concentrated hydrochloric acid, followed by extraction with ether. The organic layer was washed with saturated brine and then dried over anhydrous sodium sulfate, the insoluble materials were separated by filtration, and the filtrate was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=100:0 to 88:12) to obtain 2-allyl-6-chloro-4-nitrophenol (30.1 g) as a yellow solid.

1. stirringby stirring at 175° C. overnight
2. extractionfollowed by extraction with ether
3. washThe organic layer was washed with saturated brine
4. dry with materialdried over anhydrous sodium sulfate
5. customthe insoluble materials were separated by filtration
6. concentrationthe filtrate was concentrated under reduced pressure
7. customThe obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=100:0 to 88:12)