903576-07-8Relevant academic research and scientific papers
Method for preparing 2-amino-4-aryl-4H-pyrano-[3, 2-c]coumarin derivate
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Paragraph 0046; 0047; 0048, (2017/08/28)
The invention provides a method for preparing a 2-amino-4-aryl-4H-pyrano-[3, 2-c]coumarin derivate, and belongs to the technical field of the catalysis of ionic liquid. In a preparation reaction, the mole ratio of aromatic aldehyde, an active methylene co
Visible light promoted synthesis of dihydropyrano[2,3-c] chromenes via a multicomponent-tandem strategy under solvent and catalyst free conditions
Tiwari, Jyoti,Saquib, Mohammad,Singh, Swastika,Tufail, Fatima,Singh, Mandavi,Singh, Jaya,Singh, Jagdamba
, p. 3221 - 3231 (2016/06/13)
The development of unique, mild and efficient one pot, multicomponent-tandem synthesis of highly functionalized dihydropyrano[2,3-c]chromenes under photochemical activation is reported. The key feature of the present work is the utilization of visible lig
Highly efficient three-component, one-pot synthesis of dihydropyrano[3,2-c] chromene derivatives
Wang, Hong-Juan,Lu, Jie,Zhang, Zhan-Hui
experimental part, p. 1107 - 1112 (2012/06/18)
An efficient and convenient method for synthesis of dihydropyrano[3,2-c] chromene derivatives by onepot, three-component reaction of aldehydes, malononitrile, and 4-hydroxycoumarin in the presence of a catalytic amount of hexamethylenetetramine is reporte
Synthesis of 2-amino-4-aryl-5-oxo-4,5-dihydropyrano[3,2-c] chromene derivatives catalysed by KF-montmorillonite
Shi, Da-Qing,Wu, Nan,Zhuang, Qi-Ya
experimental part, p. 542 - 545 (2009/04/06)
A series of 2-amino-4-aryl-5-oxo-4,5-dihydropyrano[3,2-c]chromene derivatives has been synthesised by the reaction of 4-hydroxycoumarin and substituted cinnamonitriles catalysed by KF-montmorillonite. The structures were characterised by IR and 1/su
