Copper(ii) bromide-catalyzed intramolecular decarboxylative functionalization to form a C(sp3)-O bond for the synthesis of furo[3,2-c]coumarins
An efficient and eco-friendly copper(ii) bromide-catalyzed intramolecular decarboxylative functionalization to form a C(sp3)-O bond for the synthesis of furo[3,2-c]coumarins has been developed. In this reaction, a copper(ii) bromide-catalyzed intramolecular decarboxylative functionalization of α-carbonyl is successfully realized to generate an α-bromo carbonyl compound as a key intermediate.
DMSO and iodine mediated reaction of 4-hydroxycoumarins and aldehydes/aryl methyl ketones: Synthesis of furo[3,2-c]coumarins
A simple and efficient method for the synthesis of highly functionalized furo[3,2-c]coumarins was developed. The reaction occurred via initial formation of biscoumarins from the reaction of 4-hydroxycoumarins and aldehydes/aryl methyl ketones in the prese
Kolita, Sinki,Borah, Pallabi,Naidu, P. Seetham,Bhuyan, Pulak J.
p. 532 - 538
(2015/12/31)
Synthesis of furo[3,2-c]coumarin from the reaction of 3-halochromone and 2-aminochromone; 2-aminochromone as a masked 4-hydroxycoumarin
Synthesis of 2-(2-hydroxybenzoyl)-4H-furo[3,2-c]chromen-4-one has been accomplished by the reaction of 3-halochromone with 2-aminochromone. In this reaction, 2-aminochromone acts as a masked 4-hydroxycoumarin.