Cheng X, Liang F, Shi F, Zhang L, Liu Q. One-pot tandem double-aldol reaction/aza-addition of acetylacetamides and o-phthalaldehyde leading to spiroindan-2,2'-pyrrolidines.
Org Lett 2009;
11:93-6. [PMID:
19035841 DOI:
10.1021/ol802507y]
[Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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.
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