On the reaction of 3,4-dihydropyrimidones with nitric acid. Preparation and x-ray structure analysis of a stable nitrolic acid
作者:Agnieszka Puchala、Ferdinand Belaj、C. Oliver Kappe、Jan Bergman
DOI:10.1002/jhet.5570380616
日期:2001.11
4-dihydro-2-pyrimidones (DHPMs) was reacted with nitric acid under different reaction conditions. Treatment of DHPMs with 50-65% nitric acid at 0 °C led to the formation of the corresponding dehydrogenated 2-pyrimidones in moderate to good yields. In contrast, reaction of one representative DHPM with 60% nitric acid at 50 °C led to an unusually stable nitrolic acid, involving a formal nitration, nitrosation, and