Palladium(II)-pivaloyl thiourea complexes: Synthesis, characterisation and their catalytic activity in mild Sonogashira cross-coupling reaction
作者:Wan M. Khairul、Falynee Faha Abdul Wahab、Siti Kamilah Che Soh、Mustaffa Shamsuddin、Adibah Izzati Daud
DOI:10.1016/j.cplett.2020.137842
日期:2020.10
of Pd(II) complexes featuring pivaloylthiourea derivatives to investigate their catalytic behaviour in Sonogashira cross-coupling reactions as the homogenous catalyst. The SN2 reactions have resulted in pivaloyl thiourea derivatives ligands with general formula (CH3)3C(O)NHC(S)NHR introducing different substituent groups of NO2 (L1), OCH3 (L2), and H (L3) prior to form complexation with Pd(II) (MC1
我们在此报告以新戊酰硫脲衍生物为特征的Pd(II)配合物的合成,以研究其在Sonogashira交叉偶联反应中作为均相催化剂的催化行为。SN 2反应产生了具有通式(CH 3)3 C(O)NHC(S)NHR的新戊酰硫脲衍生物配体,引入了不同的NO 2(L1),OCH 3(L2)和H(L3)取代基与Pd(II)(分别为MC1,MC2和MC3)形成络合物之前。所有合成的化合物均通过典型的选择光谱和分析方法。因此,催化筛选活性表明,以MC3为特征的Pd(II)-新戊酰硫脲催化的是最佳的催化剂,因为它具有高达99%的高转化率。