## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
trans-Benzoxanthene receptors for enantioselective recognition of amino acid derivatives
✍ Scribed by Emilio M Pérez; Ana I Oliva; José V Hernández; Luis Simón; Joaquı́n R Morán; Francisca Sanz
- Book ID
- 104231161
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- French
- Weight
- 94 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
Neutral cleft-type hydrogen-bonding receptors based on a trans-benzoxanthene skeleton have shown good stereoselective association towards carbamate derivatives of amino acids. Among these, the best results corresponded to the commercially available benzyloxycarbamate (Cbz) while the t-butyloxycarbamate (Boc) protecting group afforded disappointing results. Preparative TLC impregnated in ethoxycarbonyl proline provided a rapid way to resolve the receptor racemic mixture. X-Ray analysis and Overhauser effects allow us to suggest a structure for these complexes and the reasons for the observed chiral discrimination.
📜 SIMILAR VOLUMES