Abstract
The cationic steroidal receptors 9 and 11 have been synthesized from cholic acid 3. Receptor 9 extracts N-acetyl-α-amino acids from aqueous media into chloroform with enantioselectivities (L:D) of 7-10:1. The lipophilic variant 11 has been employed for the enantioselective transport of N-acetylphenylalanine, a) through dichloromethane (DCM) and dichloroethane (DCE) bulk liquid membranes (U-tube apparatus), and b) through 2.5% (v/v) octanol/hexane via hollow fibre membrane contactors. Significant enantioselectivities and multiple turnovers were observed for both types of apparatus.
| Original language | English |
|---|---|
| Pages (from-to) | 2931-2936 |
| Number of pages | 6 |
| Journal | Chemistry - A European Journal |
| Volume | 8 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 3 Jul 2002 |
Keywords
- Chiral resolution
- Enantioselectivity
- Membranes
- Receptors
- Transport
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry