Copper Nanoparticles Catalyzed Se(Te)Se(Te) Bond Activation: A Straightforward Route Towards Unsymmetrical Organochalcogenides from Boronic Acids
作者:Balaji Mohan、Chohye Yoon、Seongwan Jang、Kang Hyun Park
DOI:10.1002/cctc.201402867
日期:2015.2
loading for the synthesis of unsymmetrical diaryl selenides is an important application in the area of nanocatalysis. The Cu NPs/AC catalyst, which exhibits excellent catalytic activity and remarkable tolerance to a wide variety of substituents, led to Se sp3‐, sp2‐, and sp‐carbon bond formation by using DMSO as a solvent and atmospheric air as oxidant. This approach can also be extended to the preparation
合成了高度多孔的铜金属有机骨架[Cu 3(BTC)2 ](BTC =苯-1,3,5-三羧酸盐),并用作合成铜纳米颗粒(NP)的前体,其特点是技术,包括XRD,SEM,TEM,EDX和BET测量。无需任何预处理,即可在室温下通过超声将合成后的铜纳米颗粒固定在活性炭(AC)上。Cu NPs / AC被用作多相催化剂,用于二苯基二硒化物和硼酸的交叉偶联,通过Se形成二苯基硒化物在无配体,无碱和无添加剂的条件下激活硒键。NPs / AC铜结合了MOF的结构和高木炭表面积,可能是一种高效的多相催化体系,可与二苯基硒化物上的各种取代基兼容。相对于其他均相系统而言,它的有前途的催化活性以及用于合成不对称二芳基硒化物的低催化剂载量是纳米催化领域中的重要应用。Cu NPs / AC催化剂表现出出色的催化活性和对各种取代基的显着耐受性,导致产生了Se sp 3 ‐,sp 2通过使用DMSO作为溶剂并使用大气