Abstract
The spectral properties of o-(2-pyrrolylketo)benzoic acid and its N-methyl and N-benzyl analogs were investigated in order to detect ring-chain tautomerism. It is shown that the investigated acids exist in the open keto form. The corresponding derivatives involving the carbonyl group were obtained. The preparation of derivatives of the cyclic lactol form of the 2-pyrrolylketobenzoic acids is described.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 916–922, July, 1979.
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Eraksina, V.N., Ivanova, T.M., Babushkina, T.A. et al. Keto acids in the pyrrole series. Chem Heterocycl Compd 15, 747–752 (1979). https://doi.org/10.1007/BF00473555
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DOI: https://doi.org/10.1007/BF00473555