Synthesis of new Pro-PYE ligands as co-catalysts toward Pd-catalyzed Heck–Mizoroki cross coupling reactions
作者:Naima Munir、Sara Masood、Faroha Liaqat、Muhammad Nawaz Tahir、Sammer Yousuf、Saima Kalsoom、Ehsan Ullah Mughal、Sajjad Hussain Sumrra、Aneela Maalik、Muhammad Naveed Zafar
DOI:10.1039/c9ra07912b
日期:——
[H2L1][OTf]2–[H2L5][I]2 from two new precursors, [P3Et][I] and [P2Me][CF3SO3]. The structure elucidations of the compounds were confirmed by multinuclear NMR (1H, 13C), FT-IR and by single crystal XRD techniques. Theoretical DFT studies were carried out to get better insight into the electronic levels and structural features of all the molecules. These synthesized new Pro-PYE ligands [H2L1][OTf]2–[H2L5][I]2 were
目前的研究工作描述了从两种新前体 [P 3 Et ][I] 和[H 2 L 1 ][OTf] 2 –[H 2 L 5 ][I] 2合成五种含有吡啶胺的新配体[P 2 Me ][CF 3 SO 3 ]。化合物的结构通过多核NMR ( 1 H, 13 C)、FT-IR 和单晶XRD 技术得到证实。进行理论 DFT 研究是为了更好地了解所有分子的电子能级和结构特征。这些合成的新 Pro-PYE 配体 [H 2 L 1 ][OTf] 2 –[H 2 L 5 ][I] 2被发现作为 Pd(CH 3 CO 2 ) 2向 Heck–的助催化剂具有显着活性。宽底物范围的 Mizoroki 偶联反应顺序为 [H 2 L 1 ][OTf] 2 ≫ [H 2 L 2 ][OTf] 2 > [H 2 L 3 ][OTf] 2 > [H 2 L 4 ] [OTf] 2 > [H 2 L 5 ][I] 2。