Conclusions
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1.
Commercial cadmium carbonate, without any prior treatment, can be used as a catalyst for the ketonization of dicarboxylic acids to cyclic ketones. On the examples of the ketonization of adipic, suberic, and 3,3,6,6-tetramethylsuberic acids it was shown that high yields of the ketones can be obtained when operating with CdCO3 and using charges of the acid ranging from 0.5 to 150 g.
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2.
Two methods for carrying out the ketonization were evaluated. The relative efficiency of the methods is importantly dependent on the nature of the acid.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 632–636, March, 1968.
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Liberman, A.L., Vasina, T.V. Some improvements in the method for the ketonization of dicarboxylic acids. Russ Chem Bull 17, 609–612 (1968). https://doi.org/10.1007/BF00911621
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DOI: https://doi.org/10.1007/BF00911621