反应详情

A solution of allyl 4-cyanophenyl ether (12 g) in diphenylether (20 ml) was heated at 260° C. for 30 minutes. The reaction mixture was cooled to ambient temperature, diethyl ether was added and the mixture was extracted with 1M aqueous sodium hydroxide solution. The aqueous phase was separated, acidified with 2M aqueous hydrochloric acid solution and extracted with diethyl ether. The organic phase was separated, dried (MgSO4) and evaporated to give 2-allyl-4-cyanophenol as a solid (11.4 g), m.p. 70° C.; microanalysis, found: C, 73.7; H, 5.6; N, 9.2%; C10H9NO. 0.25H2O requires: C, 73.4; H, 5.8; N, 8.6%; NMR: 3.2-3.5(2H,d), 5.0-5.1(2H,m), 5.85-6.05(1H,m), 6.9-7.0(1H,d), 7.4-7.5(2H,m) and 10.6(1H,s).

1. extractionthe mixture was extracted with 1M aqueous sodium hydroxide solution
2. customThe aqueous phase was separated
3. extractionextracted with diethyl ether
4. customThe organic phase was separated
5. dry with materialdried (MgSO4)
6. customevaporated