Journal
SYNTHETIC COMMUNICATIONS
Volume 53, Issue 15, Pages 1207-1215Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00397911.2023.2214644
Keywords
2-Amino-4H-chromen-4-one; azafluorenone; chromene; chromeno[2; 3-b]indeno[2; 1-e]pyridine; three-component reaction
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An efficient approach to access chromeno-fused azafluorenones was achieved through a three-component reaction involving 2-amino-4H-chromen-4-ones, aromatic aldehydes and 1H-indene-1,3(2H)-dione. This method involves successive Aldol condensation, Michael addition, intramolecular nucleophilic addition, and aromatization. The structure of a product obtained was determined using X-ray diffraction studies.
An efficient process to access chromeno-fused azafluorenones (chromeno[2,3-b]indeno[2,1-e]pyridine) via the three-component reaction between 2-amino-4H-chromen-4-ones, aromatic aldehydes and 1H-indene-1,3(2H)-dione is described. This approach includes successive the Aldol condensation, the Michael addition, intramolecular nucleophilic addition and aromatization. The structure of a product obtained was determined based on X-ray diffraction studies.
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