One-Pot Tandem Double-Aldol Reaction/Aza-Addition of Acetylacetamides and o-Phthalaldehyde Leading to Spiroindan-2,2′-pyrrolidines
摘要:
A novel domino reaction based on o-phthalaldehyde and 3-oxo-N-arylbutanamide 1 has been developed which allows one-pot and efficient synthesis of structurally complex spiroindan-2,2'-pyrrolidines 2 and 3 with complete regioselectivity and high stereoselectivity from acyclic precursors.