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カサシマ ヨシオ
YOSHIO KASASHIMA
笠嶋 義夫 所属 千葉工業大学 創造工学部 教育センター（創造工学部） 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2019/05 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Chiral Symmetry Breaking of Spiropyrans and Spirooxazines by Dynamic Enantioselective Crystallization |
| 執筆形態 | 共著 |
| 掲載誌名 | Chemistry A European Journal |
| 掲載区分 | 国外 |
| 出版社・発行元 | Wiley-VCH |
| 巻・号・頁 | 25(41),pp.9758-9763 |
| 著者・共著者 | Hiroki Ishikawa,Naohiro Uemura,Rei Saito,Yasushi Yoshida,Takashi Mino,Yoshio Kasashima,and Masami Sakamoto |
| 概要 | Dynamic enantioselective crystallization enabled the chiral symmetry breaking of two spiropyrans and one spirooxazine.
The three spiro compounds afforded racemic conglomerate crystals, and easily racemized in alcoholic solution without irradiation. Optically pure enantiomorphic crystals were obtained by vapor-diffusion crystallization or attrition-enhanced deracemization (Viedma ripening). Their absolute configurations were determined by single-crystal Xray analysis and each enantiomorphic crystal was correlated with its solid-state circular dichroism (CD) spectrum. |
| DOI | 10.1002/chem.201901889 |
| ISSN | 1521-3765 |