Summary
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1.
In the reaction of 3,3-dichloroacrolein with cyclic ketones, 2∶1 condensation products are formed.
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2.
The products of the cyclization of 3,3-dichloroacrolein with cyclic ketones are readily cyclized in an acid medium into the corresponding 2H-pyran-2-one derivatives.
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L. I. Zakharkin and L. P. Sorokina, Izv. AN SSSR, Otd. khim. n.1958, 1445.
A. Roedig, R. Marger, and S. Schödel, Chem. Ber.93, 2294 (1960).
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Zakharkin, L.I., Sorokina, L.P. Condensation of 3,3-dichloroacrolein with cyclic ketones and cyclization of the condensation products to 2H-pyran-2-one derivatives. Russ Chem Bull 11, 264–266 (1962). https://doi.org/10.1007/BF00908030
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DOI: https://doi.org/10.1007/BF00908030