FORMATION OF 3,4,5,6-TETRAHYDROQUINAZOLIN-2(1<i>H</i>)-ONE DERIVATIVES IN REACTION OF 4-ARYL-6-METHYL-3,4-DIHYDROPYRIMIDIN-2(1<i>H</i>)-ONES WITH CHALCONES
DOI:
https://doi.org/10.1007/456Keywords:
1, 3-C, C-bis-nucleophiles, 3, 4-dihydropyrimidin-2(1H)-ones, 4, 5, 6-tetrahydroquinazolin-2(1H)-ones, Biginelli compounds, deacylationAbstract
A procedure for the preparation of 6-methyl-3,4-dihydropyrimidin-2(1H)-ones involving deacylation of 5-acetyl-6-methyl-3,4-dihydropyrimidin-2(1H)-ones in MeOH–KOH medium is developed. We have shown that the obtained compounds readily undergo reaction with chalcones in MeOH–MeONa with the formation of derivatives of 4,5,7-triaryl-3,4,5,6-tetrahydroquinazolin-2(1H)-one.
Authors: M. A. Kolosov, O. G. Kulyk, O. I. Starchenko, and V. D. Orlov.
English Translation in Chemistry of Heterocyclic Compounds, 2013, 49 (8), pp 1166-1171