Synthesis of 1-amidoalkyl-2-naphthols via three-component condensation of 2-naphthol, aldehydes, and amides/urea
作者:M. Wang、Y. Liang、T. T. Zhang、J. J. Gao
DOI:10.1007/s10600-012-0200-x
日期:2012.5
An efficient three-component one-pot synthesis of 1-amidoalkyl-2-naphthols from 2-naphthol, aldehydes, and amides/urea using tin tetrachloride as catalyst at 80aC without solvent is described. The structures of the new compounds were characterized by IR, 1H NMR, and 13C NMR spectra and by elemental analysis. The advantages of the new method were good yields (45–97%), short reaction times (0.1–4 h), simple work-up, inexpensive catalyst, and the diversity of the method.
描述了一种高效的三组分一锅合成1-amidoalkyl-2-萘醇的方法,该方法使用萘酚、醛和酰胺/尿素,在80°C的无溶剂条件下,以氯化锡作为催化剂。新化合物的结构通过红外光谱、1H NMR和13C NMR谱以及元素分析进行了表征。这种新方法的优点包括良好的产率(45–97%)、短的反应时间(0.1–4小时)、简单的后处理、廉价的催化剂以及方法的多样性。