title: Microwave-Assisted Copper-Catalyzed Four-Component Tandem Synthesis of 3-N-Sulfonylamidine Coumarins.
abstract: Microwave-assisted copper-catalyzed four-component tandem synthesis of 3-N-sulfonylamidine coumarins has been accomplished by the coupling of salicylaldehydes, propiolates, sulfonyl azides, and secondary amines. This one-pot protocol affords an effective route for the construction of functionalized coumarin structural frameworks in a single operation with moderate to high yields.
authors.affiliation: Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
authors.forename: Govindarasu
authors.initials: G
authors.lastname: Murugavel
authors.affiliation: Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
authors.forename: Tharmalingam
authors.initials: T
authors.lastname: Punniyamurthy
mesh_terms: D000578:Amidines / Q000138:chemical synthesis* / Q000737:chemistry; D000588:Amines / Q000737:chemistry; D001386:Azides / Q000737:chemistry; D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D003374:Coumarins / Q000138:chemical synthesis* / Q000737:chemistry; D008872:Microwaves; D015394:Molecular Structure
chemical_list: D000578:Amidines; D000588:Amines; D001386:Azides; D003374:Coumarins; D003300:Copper