Highly Efficient Chiral Resolution of dl-Arginine by Cocrystal Formation Followed by Recrystallization under Preferential-Enrichment Conditions

Sekai Iwama; Kazunori Kuyama; Yuko Mori; Kochunnoonny Manoj; Rajesh G. Gonnade; Katsuaki Suzuki; Colan E. Hughes; P. Andrew Williams; Kenneth D. M. Harris; Stéphane Veesler; Hiroki Takahashi; Hirohito Tsue; Rui Tamura

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Highly Efficient Chiral Resolution of dl-Arginine by Cocrystal Formation Followed by Recrystallization under Preferential-Enrichment Conditions

机译：富集条件下共结晶形成再结晶后的高效手性拆分dl-精氨酸

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摘要

An excellent chiral symmetry-breaking spontaneous enantiomeric resolution phenomenon, denoted preferential enrichment, was observed on recrystallization of the 1:1 cocrystal of dl-arginine and fumaric acid, which is classified as a racemic compound crystal with a high eutectic ee value (>95%), under non-equilibrium crystallization conditions. On the basis of temperature-controlled video microscopy and in situ time-resolved solid-state ~(13)C NMR spectroscopic studies on the crystallization process, a new mechanism of phase transition that can induce preferential enrichment is proposed.

机译：在dl-精氨酸和富马酸的1：1共结晶重结晶时观察到极好的手性对称性自发对映异构拆分现象，即优先富集，被认为是具有高共晶ee值（> 95的外消旋化合物晶体）％），在非平衡结晶条件下。在温控视频显微镜和原位时间分辨固态〜（13）C NMR光谱研究结晶过程的基础上，提出了可诱导优先富集的相变新机理。

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《Chemistry: A European journal》 |2014年第33期|共8页
作者
Sekai Iwama; Kazunori Kuyama; Yuko Mori; Kochunnoonny Manoj; Rajesh G. Gonnade; Katsuaki Suzuki; Colan E. Hughes; P. Andrew Williams; Kenneth D. M. Harris; Stéphane Veesler; Hiroki Takahashi; Hirohito Tsue; Rui Tamura;
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正文语种 eng
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关键词
excellent; chiral; symmetry-breaking;

机译：优异的;手性的;对称的;

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3. Highly Efficient Chiral Resolution of dl-Arginine by Cocrystal Formation Followed by Recrystallization under Preferential-Enrichment Conditions [J] . Sekai Iwama, Kazunori Kuyama, Yuko Mori, Chemistry: A European journal . 2014,第33期

机译：富集条件下共结晶形成再结晶后的高效手性拆分dl-精氨酸
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Highly Efficient Chiral Resolution of dl-Arginine by Cocrystal Formation Followed by Recrystallization under Preferential-Enrichment Conditions

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