Abstract
A recyclable and reusable (S) diphenylpyrrolinol silyl ether I organocatalyst bearing a n-C8F17 fluorous tag has been demonstrated for promoting the asymmetric Michael addition reactions of a wide range of aldehydes with both aryl and alkyl-substituted nitroolefins and excellent levels of enantio- and diastereoselectivities are achieved. The catalyst I can be conveniently recovered by fluorous solid-phase extraction and subsequently reused (up to eight cycles) without significant loss of its catalytic activity and stereoselectivity for the process.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 5131-5134 |
| Number of pages | 4 |
| Journal | Tetrahedron Letters |
| Volume | 47 |
| Issue number | 29 |
| DOIs | |
| State | Published - Jul 17 2006 |
| Externally published | Yes |
Keywords
- Asymmetric organocatalysis
- Diphenylpyrrolinol silyl ether
- Fluorous chemistry
- Michael addition reaction
- Nitroolefin
ASJC Scopus subject areas
- Biochemistry
- Drug Discovery
- Organic Chemistry