作者:N. Ganguly、A. K. Sukai、S. De
DOI:10.1081/scc-100000214
日期:2001.1
A new convenient method of nitration of coumarins using cerium(IV) ammonium nitrate (CAN) has been developed. Higher regioselectivity is observed with CAN and hydrogen peroxide in aqueous medium in comparison with CAN in acetic acid for nitration of 7-hydroxycoumarin, 7-hydroxy-4-methyl coumarin and their derivatives.
已经开发了一种使用硝酸铈 (IV) 铵 (CAN) 硝化香豆素的新方法。与乙酸中的 CAN 相比,CAN 和过氧化氢在水性介质中对 7-羟基香豆素、7-羟基-4-甲基香豆素及其衍生物的硝化具有更高的区域选择性。