2-[6-ALKYL-3-HETARYL-4-OXO-9,10-DIHYDRO-4H,8H-CHROMENO[8,7-<i>e</i>][1,3]OXAZIN-9-YL]ACETIC ACIDS
DOI:
https://doi.org/10.1007/7520Keywords:
amino acids, 3-hetaryl-7-hydroxychromones, 3-hetaryl-4-oxo-9, 10-dihydro-4H, 8H-chromeno[8, 7-e][1, 3]oxazines, Mannich reaction, formaldehydeAbstract
The interaction has been studied of a series of substituted 3-hetaryl-7-hydroxychromones with amino acids and formaldehyde (reactants ratio 1 : 1 : 2 respectively). In the case of glycine and Het = 3-isoxazolyl the product of aminomethylation at position 8 of the chromone was obtained, and with other Het (including Het = 4-phenyl-1,2,4-triazol-3-yl) 2-[6-alkyl-3-hetaryl-4-oxo-9,10-dihydro-4H,8H-chromeno[8,7-e][1,3]-oxazin-9-yl]acetic acids were formed. With β-alanine and Het = 4-phenyl-1,2,4-triazol-3-yl the corresponding β-substituted propionic acid was synthesized, but proline did not participate in the reaction, leading to bis(6-ethyl-3-hetaryl-7-hydroxychromon-8-yl)methane.
How to Cite
Gorbulenko, N. V.; Tkachuk, T. M.; Shokol, T. V.; Semeniuchenko, V. V.; Turov, A. V.; Khilya, V. P. Chem. Heterocycl. Compd. 2007, 43, 569. [Khim. Geterotsikl. Soedin. 2007, 683.]
For this article in the English edition see DOI 10.1007/s10593-007-0091-0