Silica gel supported TaBr5: new catalyst for the facile and rapid cyclization of 2′-aminochalcones to the corresponding 2-aryl-2,3-dihydroquinolin-4(1H)-ones under solvent-free conditions

Naseem Ahmed, Johan E. van Lier

Tetrahedron Letters · 2006 · 75 citations · 22 references

Concepts

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