relation: http://publicatio.bibl.u-szeged.hu/27953/ title: Application of hydroxyproline derivatives in enantioselective α-amination reactions in organic and aqueous environments: a structure-activity relationship study creator: Gurka András Attila creator: Szőri Kornél creator: Szőri Milán creator: Bartók Mihály creator: London Gábor subject: 01.04. Kémiai tudományok description: We examined the activity of a series of L-hydroxyproline derivatives in enantioselective alpha-amination reaction between diethyl azodicarboxylate and propanal both in organic and aqueous media. In organic media most of the catalysts showed high activity and enantioselectivities comparable to that accessible with L-proline that is among the best catalysts in the reaction. The catalysts showed good activity under aqueous conditions as well; however, only low enantioselectivities were obtained in this case, primarily due to the racemisation of the product under the reaction conditions. Thus, the attempted achiral acid/base additive-driven stereocontrol was not feasible on a practical level. date: 2017 type: Folyóiratcikk type: PeerReviewed format: text identifier: http://publicatio.bibl.u-szeged.hu/27953/1/s11224-016-0873-z.pdf identifier: Gurka András Attila; Szőri Kornél; Szőri Milán; Bartók Mihály; London Gábor: Application of hydroxyproline derivatives in enantioselective α-amination reactions in organic and aqueous environments: a structure-activity relationship study. STRUCTURAL CHEMISTRY, 28 (2). pp. 415-421. ISSN 1040-0400 (2017) identifier: doi:10.1007/s11224-016-0873-z relation: https://doi.org/10.1007/s11224-016-0873-z relation: 30452962 language: eng relation: info:eu-repo/semantics/altIdentifier/doi/10.1007/s11224-016-0873-z rights: info:eu-repo/semantics/restrictedAccess