62484-64-4Relevant academic research and scientific papers
Synthesis of substituted pyrroles using a silver-catalysed reaction between isocyanoacetates/benzyl isocyanides and chromones
Qi, Xueyu,Xiang, Haoyue,Yang, Yuhong,Yang, Chunhao
, p. 98549 - 98552 (2015/12/04)
A novel synthetic strategy to construct substituted-pyrroles has been developed using silver-catalysed reactions between isocyanides/benzyl isocyanides and chromones. These reactions proceed under mild conditions and yield polysubstituted pyrroles with ef
Benzopyrans: Part XXIX - Reactions of some simple condensates of 4-oxo-4H-1-benzopyran-3-carboxaldehyde with nitrogen nucleophiles
Ghosh, Chandra Kanta,Sahana, Sirin,Bandyopadhyay, Chandrakanta
, p. 624 - 629 (2007/10/02)
The chromone 2, derived from the title aldehyde 1, gives the pyrazole 8 (R3 = Ph) with phenylhydrazine whereas 5 gives with H2NNHR3 (R3 =H and Ph) the pyridine derivatives (9).Hydroxylamine converts the chromones 2-4 into pyridine-1-oxides (13-15), respectively.The reaction of 1 with ethyl glycinate in the presence of pyridine affords the pyrroles 20 and 21, the former (20) being detected in the product mixture derived from 4 and ethyl glycinate.
Reactions of Formylchromone Derivatives. Part 5. Transformations of 3-Formylchromones into Pyrroles and Pyridines
Clarke, Paul D.,Fitton, Alan O.,Kosmirak, Mario,Suschitzky, Hans,Suschitzky, John L.
, p. 1747 - 1756 (2007/10/02)
4-Oxo-4H-1-benzopyran-3-carbaldehyde (3-formylchromone) (1) was treated with various bifunctional nucleophiles.With ethyl aminoethanoate it gave a mixture of ethyl 4-(2-hydroxybenzoyl)-6-(4-oxo-4H-1-benzopyran-3-yl)pyridine-2-carboxylate (2) and ethyl 4-(
TRANSFORMATION OF 3-FORMYLCHROMONES INTO PYRIDINES AND PYRROLES
Fitton, Alan O.,Kosmirak, Mario,Suschitzky, Hans,Suschitzky, John L.
, p. 3953 - 3956 (2007/10/02)
Interaction of 3-formylchromones with ethyl aminoethanoate provides a novel route to pyridines and pyrroles.
