3-(4-氯苄基)氮杂环丁烷

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 3-(4-chloro-benzyl)-azetidine (1.0 g, 5.50 mmol), (3-bromo-propyl)-carbamic acid tert-butyl ester (1.31 g, 5.50 mmol) and diisopropylethylamine (1.91 ml, 11.0 mmol) in dry dimethylformamide (20 ml) is stirred at ambient temperature for 18 hours. The reaction mixture is partitioned between ethylacetate and water. The organic phase is washed with water and brine, dried over magnesium sulphate and evaporated. The crude product is purified by flash silica chromatography using 5% methanol in dichloromethane as eluent to afford {3-[3-(4-Chloro-benzyl)-azetidin-1-yl]-propyl]-carbamic acid tert-butyl ester. [M+H] 339.15 The reaction mixture is partitioned between ethylacetate and water The organic phase is washed with water and brine dried over magnesium sulphate evaporated The crude product is purified by flash silica chromatography