网站首页/有机反应/金属催化反应/Hill-Barrett钙催化的氢胺化反应
Hill-Barrett钙催化的氢胺化反应

TMS2NCa类催化剂存在下,胺加成到烯烃上得到氢胺化产物的反应。ω-氨基烯烃进行分子内的此反应可以到吡咯烷类化物。除了Ca可以催化此反应,镧系金属也可以很好催化此反应,对于不对称催化,效果更好。


反应机理


反应实例

Pyrrolidine (4) (general procedure). Catalyst 2 (2–10 mol %) was added to 200–500 mg of aminoalkene 1 in 5 mL of PhH under Ar and the mixture was stirred until homogeneous. After quenching by exposure to air, rotary evaporation and bulb-to-bulb distillation gave 4, which was treated with HCl in

diethyl ether and analyzed by NMR.

【Hill MS, Barrett AGM, J Am Chem Soc.2009, 131, 9670】



2-Benzylaminoethylbenzene (7). Styrene 5 (2.5 mmol) and benzylamine 6 (2.5 mmol) were treated under Ar with Ca{N(SiMe3)2}2 and the mixture was heated to 60 C for 48 h (faster reaction with Sr{N(SiMe3)2}2]). After exposure to air and dilution with Et2O, the suspension was filtered through Celite and evaporated to afford 2-benzyl-aminoethylbenzene 7 (oil, 92%), purified by chromatography or vacuum distillation.

【Hill MS, Barrett AGM, J Am Chem Soc., 2009, 131, 12906】



相关文献

1 Marks TJ Acc Chem Res 2004 37 673

2 Hill MS J Am Chem Soc 2005 127 2042

3 Hill MS Organometal 2007 26 2953

4 Harder S Z Naturforsch 2008 63b 169

5 Hill MS, Barrett AGM J Am Chem Soc 2009 131 9670

6 Hill MS, Barrett AGM J Am Chem Soc 2009 131 12906

7 Harder S Chem Rev 2010 110 3852


编译自:Organic Syntheses Based On Name Reactions, 3RdEd, A. Hassner, Page 216-217.




纳孚服务
  • 化学试剂
  • 提供稀有化学试剂现货

  • 化学试剂定制合成服务
  • 上海纳孚生物科技有限公司提供市场稀缺的化学试剂定制服务

  • 新材料现货
  • 上海纳孚生物科技有限公司代理或自产包含石墨烯产品,类石墨烯产品、碳纳米管、无机纳米材料以及一些高分子聚合物材料

  • 结构设计及定制合成
  • 可以根据客户需求对所需化合物结构进行设计改性,从而定制合成出客户所需分子式结构

  • 联系我们
  • 021-58952328
  • 13125124762
  • info@chemhui.com
  • 关注我们
在线客服
live chat