Reactions of 3-hydroxy-1,2-dihydroquinazolin-4-ones with aldehydes |
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| Authors: | O A Luk'yanov P B Gordeev |
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| Institution: | (1) N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913 Moscow, Russian Federation |
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| Abstract: | The reactions of 3-hydroxy-2-(2-hydroxyalkyl)- or (2-hydroxyaryl)]-1,2-dihydro-quinazolin-4-ones with formaldehyde or acetaldehyde
afford 1,3-oxazino3,4-a]quinazolin-4-one derivatives. The reactions with other aldehydes RCHO and 3-hydroxy-2-R′-1,2-dihydroquinazolin-4-ones can
give 3-hydroxy-2-R-1,2-dihydroquinazolin-4-ones, 2-substituted quinazolin-4-ones, or dianthranilide.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2523–2526, December, 1998. |
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| Keywords: | 12 13-dihydro-6H 11bH-quinazolino[1 2-c][1 3]benzooxazin-13-ones 3 4 5 6-tetrahydro-1H-[1 3]oxazino[3 4-a]quinazolin-6-one 3-hydroxy-1 2-dihydroquinazolin-4-ones aldehydes |
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