反应 #3684134
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US05059597
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: 74.8 g (0.4 mol) of N-benzylmaleimide [Arch. Pharm. 308, 489 (1975)] and 52.0 g (0.4 mol) of 2-chloroethyl-methylamine hydrochloride are initially introduced into 400 ml of dioxane and 40.4 g (0.4 mol) of triethylamine are added dropwise at 20° C. The mixture is then boiled under reflux for 5 hours. The batch is subsequently poured into 2 l of ice-water and extracted with 3 portions of 400 ml of chloroform and the extract is washed with water, dried over sodium sulphate and concentrated on a rotary evaporator. Chromatography of the residue (101.1 g) on silica gel using ethyl acetate:petroleum ether (1:2) gives 56.8 g (51% of theory) of an oil. are added dropwise at 20° C under reflux for 5 hours extracted with 3 portions of 400 ml of chloroform the extract is washed with water dried over sodium sulphate concentrated on a rotary evaporator gives 56.8 g (51% of theory) of an oil
来源 ID: ord-5a7d51e4e8f140e2a4d91f043986827c