Abstract
The first successful example of the enantioselective intermolecular 1,3-dipolar cycloaddition of a chiral dirhodium(II) catalyst-associated carbonyl ylide with an aromatic aldehyde dipolarophile is described. The tandem carbonyl ylide formation/cycloaddition reactions of l-diazo-5-aryl-2,5-pentanediones with aromatic aldehydes using dirhodium(II) tetrakis[N-benzene-fused-phthaloyl- (S)-valinate] as a catalyst provide exclusively exo cycloadducts in up to 92% ee.
Original language | English |
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Pages (from-to) | 521-526 |
Number of pages | 6 |
Journal | Advanced Synthesis and Catalysis |
Volume | 349 |
Issue number | 4-5 |
DOIs | |
Publication status | Published - Mar 2007 |
Externally published | Yes |
Keywords
- 1,3-dipolar cycloaddition
- A-diazo ketones
- Aldehydes
- Asymmetric catalysis
- Carbonyl ylides
- Chiral dirhodium(II) carboxylates
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry