論文

2017年8月

Hydrogen Bonding-Assisted Enhancement of the Reaction Rate and Selectivity in the Kinetic Resolution of d,l-1,2-Diols with Chiral Nucleophilic Catalysts

ADVANCED SYNTHESIS & CATALYSIS
  • Kazuki Fujii
  • ,
  • Koichi Mitsudo
  • ,
  • Hiroki Mandai
  • ,
  • Seiji Suga

359
16
開始ページ
2778
終了ページ
2788
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1002/adsc.201700057
出版者・発行元
WILEY-V C H VERLAG GMBH

An extremely efficient acylative kinetic resolution of d,l-1,2-diols in the presence of only 0.5 mol% of binaphthyl-based chiral N,N-4-dimethylaminopyridine was developed (selectivity factor of up to 180). Several key experiments revealed that hydrogen bonding between the tert-alcohol unit(s) of the catalyst and the 1,2-diol unit of the substrate is critical for accelerating the rate of monoacylation and achieving high enantioselectivity. This catalytic system can be applied to a wide range of substrates involving racemic acyclic and cyclic 1,2-diols with high selectivity factors. The kinetic resolution of d,l-hydrobenzoin and trans-1,2-cyclohexanediol on a multigram scale (10 g) also proceeded with high selectivity and under moderate reaction conditions: (i) very low catalyst loading (0.1 mol%); (ii) an easily achievable low reaction temperature (0 degrees C); (iii) high substrate concentration (1.0M); and (iv) short reaction time (30 min).

リンク情報
DOI
https://doi.org/10.1002/adsc.201700057
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000407782300011&DestApp=WOS_CPL
ID情報
  • DOI : 10.1002/adsc.201700057
  • ISSN : 1615-4150
  • eISSN : 1615-4169
  • Web of Science ID : WOS:000407782300011

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