Add time:09/30/2019 Source:sciencedirect.com
We report the synthesis of novel 2H,8H-pyrano[2,3-f]chromene-2,8-dione based scaffolds by the reaction of 8-formyl-7-hydroxy-4-methylcoumarin with various active methylene compounds. A mechanism of a tandem Knoevenagel condensation and cyclisation reaction is proposed. The structure of all compounds was established on the basis of 1H and 13C NMR data, high resolution mass spectrometry and elemental analysis.
We also recommend Trading Suppliers and Manufacturers of 4-HYDROXY-7-METHYLCOUMARIN (cas 18692-77-8). Pls Click Website Link as below: cas 18692-77-8 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View