RING-CHAIN TAUTOMERISM OF 2-ARYL-6-OXOHEXAHYDROPYRIMIDINE-4-CARBOXYLIC ACID SODIUM SALTS
DOI:
https://doi.org/10.1007/557Keywords:
2-aryl-6-oxohexahydropyrimidine-4-carboxylic acids, ring-chain tautomerismAbstract
It was shown by 1H and 13C NMR spectroscopy that the 2-aryl-6‑oxohexahydropyrimidine-4-carboxylic acid sodium salts existed in D2O solution as a tautomeric mixture of cyclic and linear forms. The cyclic form consisted of two (2RS,4S)-stereoisomers, differing in the aryl substituent configuration at the pyrimidine ring C-2 atom.
Authors: A. Yu. Ershov, D. G. Nasledov, K. V. Nasonova, K. V. Sezyavina, T. V. Susarova, I. V. Lagoda, and V. V. Shamanin
English Translation in Chemistry of Heterocyclic Compounds, 2013, 49 (4), pp 598-603