首页> 外文期刊>Chemistry: A European journal >Stoichiometric and Catalytic Inter- and Intramolecular Hydroamination of Terminal Alkynes by Frustrated Lewis Pairs
【24h】

Stoichiometric and Catalytic Inter- and Intramolecular Hydroamination of Terminal Alkynes by Frustrated Lewis Pairs

机译:沮丧的路易斯对的末端炔烃的化学计量和催化分子间和分子内加氢胺化

获取原文
获取原文并翻译 | 示例
       

摘要

Frustrated Lewis pairs (FLPs) based on sterically encumbered anilines and the Lewis acid B(C6F5)(3) were found to react with terminal alkynes effecting intermolecular hydroamination affording iminium alkynylborate species of the form [RPhN=C(R')Me][R'CCB(C6F5)(3)]. In these cases, the reagent ratio of borane, aniline, and alkyne is 1:1:2. These reac-tions could also be performed in an intramolecular fashion by using anilines with alkynyl substituents effecting cyclization reactions. The use of 10 mol% B(C6F5)(3) under a H-2 atmosphere provides a one-pot synthesis of the pyrrolidine 12, the piperidines 13-15, the azepane 16, the isoindoline 17, and the benzoxazine 18.
机译:发现基于位阻苯胺的沮丧的路易斯对(FLP)和路易斯酸B(C6F5)(3)与末端炔烃发生分子间加氢胺化反应,从而提供[RPhN = C(R')Me]形式的炔基硼酸亚胺盐[ R'CCB(C6F5)(3)]。在这些情况下,硼烷,苯胺和炔烃的试剂比为1:1:2。这些反应也可以通过分子内的方式通过使用具有炔基取代基的苯胺来实现环化反应来进行。在H-2气氛下使用10 mol%B(C6F5)(3)可以一锅合成吡咯烷12,哌啶13-15 、,庚烷16,异吲哚啉17和苯并恶嗪18。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号