Conclusions
IR spectroscopy is suggested as a convenient method for determining the difference in the cyclic (dioxomorpholine) and acyclic forms of N-aldonoyl amino acid derivatives. It has been shown that in the acyclic forms, unlike the cyclic, there are strong absorption bands at 1570 cm−1 and 690–720 cm−1 corresponding to the amide II and V vibrations.
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Additional information
M. M. Shemyakin Institute of the Chemistry of Natural Compounds of the Academy of Sciences of the USSR. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 381–384, May–June, 1974.
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Tul'chinskii, V.M., Kogan, G.A., Kvaratskheliya, L.D. et al. Study of N-aldonoyl amino acids by IR spectroscopy. Chem Nat Compd 10, 378–380 (1974). https://doi.org/10.1007/BF00563897
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DOI: https://doi.org/10.1007/BF00563897