Peculiarities in the Radiolysis of β-Diketones.

Autor:	Vlasov, S. I., Smirnova, A. A., Ponomarev, A. V., Uchkina, D. A., Sholokhova, A. Yu., Mitrofanov, A. A.
Předmět:	RADIOLYSIS RADICAL cations HYDROGEN bonding ACETYLACETONE MOLECULES INTRAMOLECULAR catalysis SCISSION (Chemistry)
Zdroj:	High Energy Chemistry; Jun2023, Vol. 57 Issue 3, p258-263, 6p
Abstrakt:	Intramolecular hydrogen bonding has a significant effect on the radiolytic transformations of β-diketones. Using the radiolysis of acetylacetone as an example, it has been shown that a hydrogen bond between the hydroxyl and carbonyl in an enol prevents proton transfer from the primary radical cation to the neighboring molecule. As a result, the radiolytic formation of a keto alcohol (4-hydroxy-2-pentanone) was not observed at room temperature, but it was effective under boiling conditions. The intramolecular hydrogen bond contributed to a significant structural stress in the radical cation, which increased the yield of C–OH bond cleavage and the inhomogeneous formation of acetate (4-oxopent-2-en-2-yl acetate) under normal conditions. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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