EXPEDIENT SYNTHESIS OF BIOLOGICALLY POTENT ARYLOXYCOUMARINS AND (ARYLOXYIMINO)ETHYLCOUMARINS VIA COPPER(II)-PROMOTED CHAN-LAM COUPLING REACTION

被引:11
|
作者
Medda, Arunima [1 ]
Pal, Gargi [1 ]
Singha, Raghunath [2 ]
Hossain, Tabassum [3 ]
Saha, Achintya [3 ]
Das, Asish R. [1 ]
机构
[1] Univ Calcutta, Dept Chem, Kolkata 700009, India
[2] Chemgen Pharma Int Pvt Ltd, Kolkata, India
[3] Univ Calcutta, Dept Chem Technol, Kolkata 700009, India
关键词
Arylboronic acids; Chan-Lam protocol; coumarin; cross-coupling reactions; Cu(OAc)(2); DAPHNORETIN; ETHERS; AGENTS; ACIDS;
D O I
10.1080/00397911.2011.594544
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A convenient protocol for the efficient synthesis of aryloxycoumarins and (aryloxyimino) ethylcoumarins is described. The synthetic route developed involves the Cu-promoted C-O and N-O coupling reactions from readily available hydroxycoumarin and (hydroxyimino)ethylcoumarin derivatives in the presence of the catalytic system Cu(OAc)(2)/Et3N. By applying this condition, a series of arylboronic acids have been successfully reacted to afford the coupled products in fair to good yields.
引用
收藏
页码:169 / 181
页数:13
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