Abstract
A significant trans effect of potential coordinating additives was found in asymmetric cyclopropanation catalyzed by Co(II) complexes of D 2-symmetric chiral porphyrins [Co(1)]. Among different additives, substoichiometric amounts of DMAP resulted in substantial increases in both diastereoselectivity and enantioselectivity. A related solvent effect on the catalytic system was also observed.
Original language | English (US) |
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Pages (from-to) | 1697-1700 |
Number of pages | 4 |
Journal | Synthesis |
Issue number | 10 |
DOIs | |
State | Published - May 15 2006 |
Keywords
- Asymmetric catalysis
- Chiral porphyrins
- Cobalt
- Cyclopropanation
- Trans effect
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry