...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catalysis science & technology >Functionalized hypercrosslinked polymers with knitted N-heterocyclic carbene-copper complexes as efficient and recyclable catalysts for organic transformations
【24h】

Functionalized hypercrosslinked polymers with knitted N-heterocyclic carbene-copper complexes as efficient and recyclable catalysts for organic transformations

机译：功能化hypercrosslinked聚合物与针织氮杂carbene-copper复合物作为有机高效和可回收的催化剂转换

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An N-heterocyclic carbene (NHC)-copper complex supported on hypercrosslinked polymers (HCPs) was successfully synthesized through a simple external cross-linking reaction. The structure and composition of the catalyst were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), nitrogen sorption, Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and atomic emission spectrometry (AES). The obtained HCP-NHC-Cu catalyst possesses a large BET surface area, large pore volume, and good chemical and thermal stability. Hence, it was used as a solid catalyst for some organic transformations. An oxidative condensation reaction of indoles, 1,3-dicarbonyl compounds and phenylglyoxal monohydrate was developed with the aid of the HCP-NHC-Cu catalyst, which produced various polysubstituted olefins in high yield. The three-component click reaction of NaN3, phenylacetylene and benzyl halide, the Ullmann C-N coupling and the Glaser coupling reaction proceeded satisfactorily under the action of the HCP-NHC-Cu catalyst. At the end of these reactions, the catalyst was easily recovered and reused several times without significant loss of activity in all the reactions.
机译：一个氮杂卡宾(NHC)铜复杂支持hypercrosslinked聚合物(学校)通过一个简单的成功合成外部的交联反应。和组成的催化剂扫描电子显微镜的特征(SEM)、透射电子显微镜(TEM),氮吸附、傅里叶变换红外光谱(红外光谱)、x射线光电子能谱(XPS)、热重分析(TGA)和原子发射光谱法(AES)。获得HCP-NHC-Cu催化剂具有大打赌表面积,大孔隙体积,和良好的化学和热稳定性。作为对某些有机固体催化剂转换。吲哚的反应,1,3-dicarbonyl化合物和phenylglyoxal一水是发达的援助HCP-NHC-Cu催化剂的生产各种为烯烃的高收益。NaN3的三分量的点击反应,苯乙炔和苄基卤化物,乌尔曼碳氮耦合和格拉泽耦合反应令人满意的作用下进行HCP-NHC-Cu催化剂。反应,催化剂容易回收重用多次没有重大损失活动的反应。

著录项

相似文献

  • 外文文献
  • 中文文献
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