13475-37-1

Upstream product

• 4322-58-1 3,3'-((2-chlorophenyl)methylene)bis(4-hydroxy-2H-chromen-2-one) 
• 1076-38-6 4-hydroxy[1]benzopyran-2-one 
• 89-98-5 2-chloro-benzaldehyde 
• 24133-53-7 1,2-bis(2-chlorophenyl)-1,2-ethanediol 

Relevant academic research and scientific papers

Pseudo Multicomponent Reaction: Synthesis of Fused Pyrano Biscoumarin Analogs from 1,2-diols

A simple and efficient method has been developed for the synthesis of fused pyrano biscoumarins using lead tetraacetate as an oxidizing agent by the condensation of one equivalent of 1,2-diols and four equivalent of 4-hydroxy coumarin in acetonitrile as solvent at 80°C with good to excellent yields.

DABCO-modified super-paramagnetic nanoparticles as an efficient and water-compatible catalyst for the synthesis of pyrano[3,2-c:5,6-c']dichromene-6,8-dione derivatives under mild reaction conditions

In this paper, a novel catalyst is introduced based on the immobilization of 1,4-diazabicyclo[2.2.2] octane (DABCO) on super-paramagnetic iron oxide nanoparticles. For the synthesis of the catalyst, silica-magnetic iron oxide core-shell nanoparticles were

Reaction of dimethyl sulfoxide-acetic anhydride with 4-hydroxy-coumarin, its derivatives under microwave conditions

4-Hydroxycoumarin and various biscoumarins synthesized under microwave conditions were treated with the DMSO-Ac2O reagent under the same conditions to yield different products. A comparative account of the reactions with conventional procedure, as reporte