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SalenMn(Ⅲ)催化非活化烯烃的不对称溴胺化反应

SalenMn(Ⅲ) Catalyzed Asymmetric Bromamination of Unactivated Olefins

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【作者】 李海萌董琦尚会建

【Author】 Li Haimeng;Dong Qi;Shang Huijian;College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology;

【通讯作者】 尚会建;

【机构】 河北科技大学化学与制药工程学院

【摘要】 考察催化剂、溶剂、溴化试剂、温度和时间对SalenMn(Ⅲ)催化的非活性烯烃溴胺化反应的反应产率和对映体过量(ee)值的影响。研究表明,当1为催化剂、氯代苯为溶剂和次溴酸钠为溴化试剂在10℃下反应6h,反应产率最高为88%,ee(对映体过量值)最高为97%。此方法为构建手性氮杂环化合物提供了新选择。

【Abstract】 The bromoamination of unactive olefin catalyzed by SalenMn(Ⅲ) chiral ligand was studied. The effects of catalyst, solvent, bromine source, temperature and time on the reaction yield and enantioselectivity were investigated. It was found that when Cat.1 is used as catalyst, chlorobenzene as solvent and sodium hypobromate as brominating agent, the reaction is conducted at 10℃ for 6 h, the yield of the product is up to 88%, and the enantiomeric excess(ee) value is 97%. This method provides a new choice for the construction of chiral nitrogen heterocyclic compounds.

【基金】 河北省自然科学基金重点项目(B2020208095)资助
  • 【分类号】TQ460.1;O626
  • 【下载频次】12
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