Iadeishisha Kharbangar

TL;DR: In this article, an efficient four-component synthesis of 6-amino-4-alkyl/aryl-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitriles involving ethyl acetoacetate, hydrazine hydrate, malononitrile, and various aldehydes using l -proline (10 ǫ%) in water under mild reaction condition in excellent yields is established.

TL;DR: The pyran ring and its derivatives have been and continue to be a subject of considerable importance due to their wide spectrum of biological applications as mentioned in this paper, and they have been used in many applications.

TL;DR: An efficient regioselective protocol for the C-C bond formation by the unexpected α,α-diarylation of aromatic ketones with unactivated arenes in the presence of selenium dioxide and boron trifluoride etherate has been developed.

TL;DR: In this paper, the α-carbon atom of aromatic ketones with unactivated arenes in the presence of selenium dioxide and p-toluenesulfonic acid monohydrate is described.

TL;DR: In this paper, the basic catalyst for the three-component synthesis of 4H-pyran derivatives by the reaction of aldehydes, malononitrile and active methylene dicarbonyl compounds in ethanol at room temperature is described.