Study of asymmetric aldol and Mannich reactions catalyzed by proline–thiourea host–guest complexes in nonpolar solvents |
| |
Authors: | Ayhan Sıtkı Demir Sinan Basceken |
| |
Affiliation: | 1. Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey;2. Department of Chemistry, Hitit University, 19030 Corum, Turkey |
| |
Abstract: | A proline–thiourea host–guest complex has been described as a good catalyst for asymmetric reactions such as aldol and Mannich reactions. High stereoselectivities were obtained under optimal conditions. Thiourea was observed to have an important effect on the reactivity and selectivity, even in an unconventional nonpolar reaction medium and without the need to utilize low temperatures. This proline–thiourea host–guest system has the ability to participate in a hydrogen bonding network. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|