Summary
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1.
2,2′-Methylenedi-1,3-cyclohexanedione and 2,2′-methylenebisdimedon readily form diesters and diethers under the action of acylating agents and of diazomethane.
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2.
When treated with dilute potassium hydroxide solution, 2,2′-methylenedi-l,3-cyclohexanedione readily undergoes selective hydrolytic cleavage with formation of 7-(2,6-dioxocyclohexyl)-5-oxoheptanoic acid (XII).
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3.
On treatment with bromine in a mixture of chloroform and water, 2,2′-methylenebisdimedon is converted into the tricyclic triketone (XVII).
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Kondrat'eva, G.V., Kogan, G.A. & Zav'yalov, S.I. β-Dicarbonyl compounds. Russ Chem Bull 11, 1353–1358 (1962). https://doi.org/10.1007/BF00907985
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DOI: https://doi.org/10.1007/BF00907985