کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1302167 | 974677 | 2011 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Catalytic transfer hydrogenation of ketones by ruthenium(II) cyclometallated complex containing para-chloroacetophenone thiosemicarbazone Catalytic transfer hydrogenation of ketones by ruthenium(II) cyclometallated complex containing para-chloroacetophenone thiosemicarbazone](/preview/png/1302167.png)
Ruthenium(II) cyclometallated complex containing para-chloroacetophenone thiosemicarbazone (L) of formula [Ru(L)(CO)(PPh3)2] has been synthesized and characterized by elemental and spectral analyses. The thiosemicarbazone ligand coordinates to ruthenium as a terdentate C, N, and S donor generating two five membered metallacycles. The crystal structure analysis of the complex [Ru(L)(CO)(PPh3)2] indicates the presence of a distorted octahedral geometry. The complex shows a quasi-reversible one electron oxidation (RuIII/RuII) at 0.78 V vs SCE. Further, the catalytic transfer hydrogenation of substituted acetophenones by the titled complex was carried out with conversions up to 99.3% in the presence of i-prOH/KOH.
Graphical AbstractRuthenium(II) cyclometallated complexes derived from C-H activation of thiosemicarbazone efficiently catalyzes a series of acetophenones and the maximum conversion was found to be 99.3%.Figure optionsDownload as PowerPoint slideResearch Highlights
► This work aims to generate air stable M-C bond ie, organometallic species.
► Synthesized complex has been characterized by spectral and analytical methods.
► Cyclometallation was achieved via C-H activation of TSC ligand by ruthenium complex.
► Transfer hydrogenation of acetophenones by ruthenium complex has been studied.
Journal: Inorganic Chemistry Communications - Volume 14, Issue 5, May 2011, Pages 686–689