Cerium(IV) ammonium nitrate mediated nitration of coumarins

Cerium(IV) ammonium nitrate mediated nitration of coumarins
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DOI：
10.1081/scc-100000214
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发表时间：
2001-01-01
期刊：
SYNTHETIC COMMUNICATIONS
影响因子：
2.1
通讯作者：
De, S
De, S
中科院分区：
化学4区
文献类型：
--
作者：
Ganguly, N;Sukai, AK;De, S

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提出了一种简便的硝酸铈铵硝化香豆素的新方法。对7-羟基香豆素、7-羟基-4-甲基香豆素及其衍生物的硝化反应，在水溶液中用CAN和过氧化氢比在冰醋酸中有较高的区域选择性。
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.