反应 #3765491
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US04172834
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A solution of 7 g. of dimethylaminocyclohexanone and 8.4 g. of 3-methoxyphenylhydrazine hydrochloride in 40 ml. of absolute ethyl alcohol and 12 ml. of 4-N hydrogen chloride in ethyl alcohol was heated under reflux for two hours. The reaction mixture was allowed to stand for sixteen hours, filtered, and the filtrate was evaporated to dryness under reduced pressure. The residue was taken up in water, made alkaline with dilute sodium hydroxide and extracted with ether. The ether extract was washed with water, dried, ethereal hydrogen chloride was added, and the resulting oily precipitate was collected by decantation, recrystallized twice from isopropyl alcohol, suspended in chloroform and treated with dilute sodium hydroxide. The chloroform extract was evaporated to dryness under reduced pressure to give 3-(dimethylamino)-7-methoxy-1,2,3,4-tetrahydrocarbazole, m.p. 100°-105° C. under reflux for two hours to stand for sixteen hours filtered the filtrate was evaporated to dryness under reduced pressure extracted with ether The ether extract was washed with water dried ethereal hydrogen chloride was added the resulting oily precipitate was collected by decantation recrystallized twice from isopropyl alcohol treated with dilute sodium hydroxide The chloroform extract was evaporated to dryness under reduced pressure
来源 ID: ord-89bc25a43e0946689606e75680c86471