%0 Generic
%A Chai, Huining
%A Liu, Tingting
%A Wang, Qingfu
%A Yu, Zhengkun
%D 2015
%T Substituent Effect on the Catalytic Activity of Ruthenium(II)
Complexes Bearing a Pyridyl-Supported Pyrazolyl-Imidazolyl Ligand
for Transfer Hydrogenation of Ketones
%U https://acs.figshare.com/articles/dataset/Substituent_Effect_on_the_Catalytic_Activity_of_Ruthenium_II_Complexes_Bearing_a_Pyridyl_Supported_Pyrazolyl_Imidazolyl_Ligand_for_Transfer_Hydrogenation_of_Ketones/2111272
%R 10.1021/acs.organomet.5b00727.s003
%2 https://ndownloader.figshare.com/files/3744559
%K Substituent Effect
%K NNN ligand
%K order NHTs
%K Catalytic Activity
%K imidazolyl moiety
%K 345 600
%K RuH complexes
%K NMR
%K TOF value
%K transfer hydrogenation
%K Transfer Hydrogenation
%X Air- and moisture-stable ruthenium(II)
complexes bearing a multisubstituted
pyrazolyl-imidazolyl-pyridine ligand were synthesized and structurally
characterized by NMR and X-ray single-crystal crystallographic analyses.
The substituents on the imidazolyl moiety of the NNN ligand exhibited
a remarkable impact on the catalytic activity of the corresponding
Ru(II) complexes for transfer hydrogenation of ketones in refluxing
2-propanol, following the order NHTs > Me > H > NO2, to
tune the catalytic activity. The highest final TOF value of 345 600
h–1 was reached by means of 0.05 mol % of the Ru(II)-NHTs-substituted
NNN complex as the catalyst. The corresponding structurally confirmed
RuH complexes are proposed as the catalytically active species.
%I ACS Publications