The ultrasonic energy has been revisited and applied for the synthesis of bioactive
molecules in a short time and green method. These compounds can exhibit anticancer …

Over the last few decades surface active compounds in aqueous media have proven to be
the most benign alternative for overcoming the difficulty of insolubility and hydrolytic …

Recent advances in 4-hydroxycoumarin chemistry. Part 1: Synthesis and reactions -
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Fluoroalkyl-containing organic compounds have exhibited wide applications in the field of
pharmaceuticals, agrochemicals and materials science due to their outstanding properties …

A concise and regioselective approach to the synthesis of chromenopyridine and
chromenopyridinone derivatives was developed. The synthetic strategy relies on the O …

We demonstrate a facile one pot approach for the regioselective synthesis of chromeno [4, 3-
b] quinolin-6-one derivatives in excellent yields under microwave (MW) irradiation. This …

Chromenopyridines constitute a structurally diverse class of compounds with a wide range
of bioactivities and increasing presence in drugs. Here we analyze the scope of the synthetic …

Coumarins (natural, as well as synthetic) are an important class of heterocycles having
immense potential for industrial and medicinal applications. Coumarin-fused heterocycles …

A series of seven novel scaffolds of 2-substituted 4-trifluoromehyl-5H-chromeno [4, 3-b]
pyridin-5-ones (3a-g), where R (2-substituents)= Me, Ph, 4-tolyl, 4-NO 2 C 6 H 4, 4-FC 6 H 4 …

4-Chloro-3-(trifluoroacetyl)-and 4-chloro-3-(methoxalyl) coumarins react with electron-rich
aminoheterocycles, dimethyl 1, 3-acetonedicarboxylate, hydrazines, alkyl thioglycolates …