Sun FG, Ye S. N-heterocyclic carbene-catalyzed [4 + 1] annulation of phthalaldehyde and imines.
Org Biomol Chem 2011;
9:3632-5. [PMID:
21472180 DOI:
10.1039/c1ob05092c]
[Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The diastereoselective synthesis of cis-2-amino-3-hydroxyindanones was realized by the N-heterocyclic carbene-catalyzed [4 + 1] annulation of phthalaldehyde and imines, which may involve a tandem aza-benzoin reaction and aldol reaction.
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