- CHEMISTRY OF OXALYL DERIVATIVES OF METHYL KETONES. XXXVII. SYNTHESIS AND THERMAL DECARBONYLATION OF 5-ARYL-4-HALOGENO-2,3-DIHYDRO-2,3-FURANDIONES
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5-Aryl-4-halogeno-2,3-dihydro-2,3-furandiones were obtained by the halognation of 5-aryl-2,3-dihydro-2,3-furandiones.The kinetics of the thermal decarbonylation of the products, leading to the formation of 6-aryl-3-aroyl-5-bromo-4-hydroxy-2-pyranones, were investigated.A comparative assessment of the kinetics and activation parameters of the reaction indicates that the decarbonylation reaction has concerted character.
- Andreichikov, Yu. S.,Gel't, N. V.,Kozlov, A. P.
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p. 1595 - 1600
(2007/10/02)
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