Ruthenium complexes of aminophosphine ligands and their use as pre-catalysts in the transfer hydrogenation of aromatic ketones: X-ray crystal structure of thiophene-2-(N-diphenylthiophosphino)methylamine
作者:Murat Aydemir、Akın Baysal、Saim Özkar、Leyla Tatar Yıldırım
DOI:10.1016/j.poly.2010.12.011
日期:2011.3
transfer hydrogenation of acetophenone derivatives to 1-phenylethanol derivatives in the presence of iso-PrOH as the hydrogen source. [Ru(Ph2PNHCH2-C4H3S)(η6-p-cymene)Cl2], 3 and [Ru((PPh2)2NCH2-C4H3S)(η6-p-cymene)Cl]Cl, 4 complexes are suitable catalyst precursors for the transfer hydrogenation of acetophenone derivatives in 0.1 M iso-PrOH solution. Notably 4 acts as an excellent catalyst giving the
与PPH的一个或二当量噻吩-2-甲胺的反应2中的净的存在氯3,前进的THF,得到噻吩-2-(Ñ -diphenylphosphino)甲胺,1A和噻吩-2-(Ñ,ñ -双(二苯基膦基)甲胺,分别在厌氧条件下2a。用过氧化氢水溶液,元素硫或灰色硒氧化1a和2a,得到相应的氧化物,硫化物和硒化物[Ph 2 P(E)NHCH 2 -C 4 H 3 S](E:O 1b,S 1c,Se 1d)和[(Ph 2 P(E))2 NCH 2 -C 4 H 3 S],(E:O 2b,S 2c,Se 2d),高收率。此外,两个新颖的Ru(II)与所述P-N配体的络合物1A和2A,合成开始于复杂的[Ru(η 6 - p -cymene)(μ-Cl)的CL] 2。通过分析和光谱方法对配合物进行了充分表征。31 P– 1 H} NMR,DEPT,1 H– 13 C HETCOR或1 H–1 H COZY相关性实验