Ruthenium(II) complexes containing phosphino hydrazone/thiosemicarbazone ligand: An efficient catalyst for regioselective &ITN&IT-alkylation of amine via borrowing hydrogen methodology

Ramachandran R.; Prakash G.; Viswanathamurthi P.; Malecki J. G.

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Ruthenium(II) complexes containing phosphino hydrazone/thiosemicarbazone ligand: An efficient catalyst for regioselective &ITN&IT-alkylation of amine via borrowing hydrogen methodology

机译：含有磷氨基腙/硫代吡吩的钌（II）配合物：通过借用氢方法的氨基和ITN和ITN＆ITN的有效催化剂和IT-烷基化催化剂

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In the aspect of more effective ruthenium based catalyst design, three new ruthenium(II) phosphinohydrazone/thiosemicarbazone complexes (1-3) have been synthesized by the reactions of cis-[RuCl2(dmso)(4)] or [RuHCl(CO)(AsPh3)(3)] with deprotonated 2-(2-(diphenylphosphino)benzylidene)-2-thiophenecarboxylic acid hydrazone (PNO-Thy) or 2-(2-(diphenylphosphino)benzylidene)-4-phenyl-3-thiosemicarbazone (PNS-Ph). The structures of the complexes (2 and 3) were established by X-ray crystallography and spectroscopic methods including elemental analysis, FT-IR and NMR (H-1, C-13 & P-31). Single crystal XRD upshots of complexes (2 and 3) revealed a distorted octahedral geometry around the ruthenium ion with hydrazone/thiosemicarbazone acts as a monoanionic tridentate PNO/PNS donor fashion. The catalytic study of complexes 1-3 towards regioselective N-alkylation reactions of amines was completed, showing that all catalysts are active toward catalytic transformations. Notably, complex 3 was found to be very efficient catalysts toward N-alkylation of a wide range of heterocyclic amines with alcohols. This catalysis provides a clean, convenient and practical route for the direct N-alkyl amine synthesis. (C) 2018 Elsevier B.V. All rights reserved.

机译：在更有效的基于钌的催化剂设计中，通过CIS-[RuCl 2（DMSO）（4）]或[Ruhcl（Co）的反应合成了三种新的钌（II）磷腙/硫代吡唑络合物（1-3）。（asph3）（3）]用反质酸化2-（2-（二苯基膦基）苄基甲苯）-2-噻吩羧酸腙（PNO-THY）或2-（2-（二苯基膦酰基）苄基）-4-苯基-3-硫代吡吩（ PNS-pH）。通过X射线晶体学和光谱方法建立配合物（2和3）的结构，包括元素分析，FT-IR和NMR（H-1，C-13＆P-31）。复合物（2和3）的单晶XRD果节揭示了含有腙/硫代虫鸟的钌离子周围的扭曲的八面体几何形状，作为单一的三齿PNO / PNS供体时尚。完成了络合物1-3朝向区域选择性N-烷基化反应的催化研究，表明所有催化剂均向催化转化效应。值得注意的是，发现复合物3是非常有效的催化剂，朝向含有醇的各种杂环胺的N-烷基化。该催化为直接N-烷基胺合成提供了干净，方便实用的路线。（c）2018年elestvier b.v.保留所有权利。

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《Inorganica Chimica Acta》 |2018年第2018期|共8页
作者
Ramachandran R.; Prakash G.; Viswanathamurthi P.; Malecki J. G.;
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作者单位

Periyar Univ Dept Chem Salem 636011 India;

Periyar Univ Dept Chem Salem 636011 India;

Periyar Univ Dept Chem Salem 636011 India;

Silesian Univ Dept Crystallog Szkolna 9 PL-40006 Katowice Poland;

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正文语种 eng
中图分类无机化学;
关键词
Thiosemicarbazone; Hydrazone ligands; Ruthenium complexes; N-Alkylation;

机译：硫代吡吡唑嗪;腙配体;钌配合物;N-烷基化;

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1. Ruthenium(II) complexes containing phosphino hydrazone/thiosemicarbazone ligand: An efficient catalyst for regioselective &ITN&IT-alkylation of amine via borrowing hydrogen methodology [J] . Ramachandran R., Prakash G., Viswanathamurthi P., Inorganica Chimica Acta . 2018,第期

机译：含有磷氨基腙/硫代吡吩的钌（II）配合物：通过借用氢方法的氨基和ITN和ITN＆ITN的有效催化剂和IT-烷基化催化剂
2. Ruthenium(II) Complexes of Heteroditopic N-Heterocyclic Carbene Ligands: Efficient Catalysts for C-N Bond Formation via a Hydrogen-Borrowing Strategy under Solvent-Free Conditions [J] . Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 2020,第3期

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Ruthenium(II) complexes containing phosphino hydrazone/thiosemicarbazone ligand: An efficient catalyst for regioselective &ITN&IT-alkylation of amine via borrowing hydrogen methodology

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