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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 | 2026/01/05 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Fluxional Axially Chiral P,Pyridine Ligands for Pd-Catalyzed Asymmetric Allylic Alkylation |
| 執筆形態 | 共著 |
| 掲載誌名 | The Journal of Organic Chemistry |
| 掲載区分 | 国外 |
| 出版社・発行元 | American Chemical Society. |
| 巻・号・頁 | 91(2),pp.1156-1164 |
| 総ページ数 | 9 |
| 著者・共著者 | Kohei Watanabe, Ayano Suzuki, Nana Oguri, Yasushi Yoshida, Yoshio Kasashima, Ryo Takita, Masami Sakamoto, and Takashi Mino |
| 概要 | We synthesized chiral P,pyridine-type ligands (S)-L1–4 with fluxional chirality and demonstrated Pd-catalyzed asymmetric allylic alkylation with malonates achieving high enantioselectivities (up to 91% ee). DFT calculations suggest that the chiral phenylethyl moiety plays a crucial role in attaining enantioselectivity by regulating not only the fluxional axial chirality of the ligand but also the orientation of the π-allyl group through CH−π interactions. |
| DOI | 10.1021/acs.joc.5c02806 |
| ISSN | 1520-6904 |