Abstract
The reaction of 2-acylaminochromones with formaldehyde and primary amines leads to derivatives of 1,2,3,4-tetrahydrochromeno[2,3-d]pyrimidine, and with aromatic aldehydes in the presence of triethylamine, to arylidene-3,3′-bis(2-acylaminochromone)s. The chlorination of 2-acylaminochromones has yielded the corresponding 3-chloro derivatives. The aminomethylation of 2-aminochromone takes place in position 3.
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Sh.M. Glozman and V. A. Zagorevskii, KhGS [Chemistry of Heterocyclic Compounds], 6, 874 (1970).
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For Communication XL, see [5].
Translated from Khimiya Geterotsiklicheskikh Soedinenii, Vol. 6, No. 8, pp. 1015–1018, August, 1970.
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Zagorevskii, V.A., Glozman, S.M. & Zhmurenko, L.A. Investigations on pyran and related compounds. Chem Heterocycl Compd 6, 943–946 (1970). https://doi.org/10.1007/BF00480618
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DOI: https://doi.org/10.1007/BF00480618