New method for the synthesis of chromeno[4,3-b]chromene derivatives via multicomponent reaction promoted by niobium pentachloride

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• 作者：Willian Henrique dos Santos ; Luiz Carlos da Silva-Filho ; ^{lcsilva@fc.unesp.br}
• 关键词：Niobium pentachloride ; Lewis acid ; Coumarin ; Chromene ; Multicomponent reactions
• 刊名：Tetrahedron Letters
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：58
• 期：9
• 页码：894-897
• 全文大小：335 K
• 卷排序：58

文摘

Chromeno[4,3-b]chromene derivatives are an important class of organic compounds. Synthesis of Chromeno[4,3-b]chromene derivatives by MCR promoted by NbCl5. Synthesis of Chromeno[4,3-b]chromene derivatives in mild reaction conditions.