Uncatalysed reactions in water: Part 2. Preparation of 3-carboxycoumarins

被引:89
作者
Maggi, R [1 ]
Bigi, F [1 ]
Carloni, S [1 ]
Mazzacani, A [1 ]
Sartori, G [1 ]
机构
[1] Univ Parma, Dipartimento Chim Organ & Ind, I-43100 Parma, Italy
关键词
D O I
10.1039/b101822c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A simple, efficient and environmentally friendly procedure has been developed for the reaction of Meldrum's acid with salicylaldehydes. 3-Carboxycoumarins 5 were synthesised in high yields (78-96%) and excellent selectivities (95-98%) by carrying out the reaction in water at reflux for 10 h, avoiding the addition of any catalyst.
引用
收藏
页码:173 / 174
页数:2
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