Revised Mechanisms of the Catalytic Alcohol Dehydrogenation and Ester Reduction with the Milstein PNN Complex of Ruthenium
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https://figshare.com/articles/dataset/Revised_Mechanisms_of_the_Catalytic_Alcohol_Dehydrogenation_and_Ester_Reduction_with_the_Milstein_PNN_Complex_of_Ruthenium/11527938
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资源简介：
The
combined experimental/DFT computational study of RuH2(CO)[Et2NCH2PyCH2Pt-Bu2] (2) suggests that this dihydride is
the catalyst of the acceptorless alcohol dehydrogenation and ester
hydrogenation reactions developed in the group of Milstein, whereas
the corresponding alkoxide RuH(OR)(CO)[Et2NCH2PyCH2Pt-Bu2] (4) is an important reaction intermediate. A relatively fast equilibrium
of dihydride 2 and ethanol with ethoxide 4 and H2 was demonstrated by NMR experiments, as well as
the proton exchanges occurring between the OH of ethanol, RuH, and
the CH2 groups of the PNN ligand backbone of 2 and 4. A detailed critical discussion of the previously
proposed mechanisms with the Milstein catalyst is presented. This
paper also reports the preparation of the osmium dihydride OsH2(CO)[Et2NCH2PyCH2Pt-Bu2] (2-Os) and a comparative
study of 2, 2-Os, and the Noyori-type osmium
catalyst OsH2(CO)[PyCH2NHCH2CH2NHPt-Bu2].
创建时间：
2020-01-06
