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BCl3 Catalyzed, Solvent Free Protocol for the Synthesis of Dihydropyrano[ 3,2-b] Chromenediones
Letters in Organic Chemistry ( IF 0.8 ) Pub Date : 2021-05-01 , DOI: 10.2174/1570178617999200805163909
Vikas B. Suryawanshi 1 , Kalimoddin I. Momin 2 , Jairaj K. Dawle 3 , Sushil R. Mathapati 4
Affiliation  

Solvent free synthesis of dihydropyrano[3,2-b]chromenediones was formulated via multicomponent reactions of kojic acid, dimedone and several substituted aromatic aldehydes catalyzed with BCl3. Reactions progressed efficiently and the corresponding heterocyclic products were obtained in good to high yields within short period. The developed protocol is one of the better and efficient alternative methods for the synthesis of dihydropyrano[3,2-b]chromenediones. The simple reaction procedure, easy separation of products, radially available catalyst are certain benefits of this reported protocol.



中文翻译:

BCl 3催化,无溶剂合成二氢吡喃并[3,2-b]铬二酮

通过曲酸,二甲酮和BCl3催化的几种取代的芳族醛的多组分反应,配制了无溶剂合成二氢吡喃并[3,2-b]铬二酮。反应有效地进行,并且在短时间内以良好至高收率获得了相应的杂环产物。所开发的方案是用于合成二氢吡喃并[3,2-b]铬二酮的更好且有效的替代方法之一。简单的反应程序,容易的产物分离,径向可用的催化剂是该报道方案的某些优点。

更新日期:2021-05-04
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