| Abstract: | In the presence of a mediator (sodium iodide) acetylacetone dimerizes with the formation of 3,4-diacetylhexane-2,5-dione, with a yield up to 90%. Salts of 2-halosubstituted 1,3-diketones form more highly enolized cyclic 1,3-diketones — 1,3-cyclohexanedione and dimedone under analogous conditions, with a yield up to 90%.N. D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, 117913 Moscow Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 1, pp. 154–158, January, 1992. |
