(Z)-1,2-Dimethyl-4-(4-methoxybenzylidene)-1H-imidazol-5(4H)-one underwent a condensation reaction with aromatic acyl chlorides, forming keto derivatives that were structurally similar to chromophores of red fluorescent proteins, as well as to the products of their maturation and/or degradation. The reverse reaction of the obtained products was observed upon treatment with aqueous alkali.
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Notes
Here and further for compounds 4a-e the total yield of two steps based on the starting imidazolone 1 is shown.
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The study was performed with financial support from the Russian Foundation for Basic Research in the framework of the project No. 14-50-00131. The equipment of Collective Use Center of the Institute of Bioorganic Chemistry was used for part of this research.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, 2015, 51(10), 944–947
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Golodukhina, S.V., Baleeva, N.S., Mineyev, K.S. et al. Reversible condensation of 4-arylidene-1,2-dimethyl-1H-imidazol-5(4H)-ones with aromatic acyl chlorides. Chem Heterocycl Comp 51, 944–947 (2015). https://doi.org/10.1007/s10593-015-1802-6
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DOI: https://doi.org/10.1007/s10593-015-1802-6