Synthesis of 1,2,3-Triazolium Ionic Liquid-Supported Chiral Imidazolidinones and Their Application in Asymmetric Alkylation Reaction
- 주제(키워드) ionic liquid , 1 , 2 , 3-triazolium , chiral imidazolidinone , asymmetric alkylation , chiral auxiliaries
- 주제(기타) Biochemistry & Molecular Biology
- 주제(기타) Chemistry, Multidisciplinary
- 등재 SCIE, SCOPUS
- OA유형 Green Published, gold
- 발행기관 MDPI
- 발행년도 2019
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000161590
- 본문언어 영어
- Published As http://dx.doi.org/10.3390/molecules24183349
- PubMed https://pubmed.ncbi.nlm.nih.gov/31540061
초록/요약
New 1,2,3-triazolium ionic liquid-supported chiral imidazolidinones were developed. The feasibility of the ionic liquid-supported imidazolidinones as chiral auxiliaries was demonstrated in sequential propionylation-alkylation-cleavage reactions, which provided the chiral product with good to excellent chemical yields (up to 90%) and high selectivities (up to 94% ee). The progress of the reactions could be monitored by TLC and NMR, and the ionic liquid-supported chiral auxiliaries could be recovered by simple extraction.
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