66611-99-2Relevant academic research and scientific papers
Regioselective mononitration of coumarins using claycop reagent
Kanodia, Saraswati,Thapliyal, Prakash Chander
experimental part, p. 241 - 244 (2012/03/11)
Coumarins are nitrated by claycop (cupric nitrate impregnated on the K10 montmorillonite) in acetic anhydride at room temperature to give corresponding regioselective mononitro coumarins in good to excellent yields. Among the products three nitrocoumarins are new.
Synthesis and biological evaluation of coumarinyl sydnone derivatives
Patel, Keshav C.,Patel, Himanshu D.
experimental part, p. 113 - 118 (2012/02/03)
A novel series of compounds containing coumarinyl sydnone derivatives from 4-methyl-7-hydroxy-8-nitro coumarin were synthesized. The formed compounds have been evaluated by physical methods (melting point, thin layer chromatography, elemental analysis) an
Substituted coumarin compounds
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, (2008/06/13)
New benzopyrane derivatives of the general formula STR1 in which R is free, esterified or amidated carboxyl, Ph is 1,2-phenylene which contains the group R--CO--NR3 -- and is otherwise unsubstituted or is substituted, X is a group of the formul
