Conclusions
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1.
It was established by the method of deuteroexchange that in the process of hydrogenation of 6-methyl-3, 5-heptadiene-2-one on a Ni-Al2O3 catalyst modified with cadmium, there is an intermediate enol formation. In the presence of the unmodified catalyst, the enol is not formed.
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2.
The change in the direction of hydrogénation of the dienone under the influence of modifying additive is due to a change in the mechanism of the addition of hydrogen.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1052–1055, May, 1972.
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Freidlin, L.K., Gvinter, L.I., Borunova, N.V. et al. Change in the selectivity of the action of catalysts in the hydrogenation of the dienone group. Russ Chem Bull 21, 1008–1011 (1972). https://doi.org/10.1007/BF00853757
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DOI: https://doi.org/10.1007/BF00853757