| Literature DB >> 12489222 |
Beatriz Baragaña1, Adrian G Blackburn, Perla Breccia, Anthony P Davis, Javier de Mendoza, José M Padrón-Carrillo, Pilar Prados, Jens Riedner, Johannes G de Vries.
Abstract
The cationic steroidal receptors 9 and 11 have been synthesized from cholic acid 3. Receptor 9 extracts N-acetyl-alpha-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.Entities:
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Year: 2002 PMID： 12489222 DOI： 10.1002/1521-3765(20020703)8:13<2931::AID-CHEM2931>3.0.CO;2-H
Source DB: PubMed Journal: Chemistry ISSN： 0947-6539 Impact factor: 5.236