A switchable intramolecular hydrogen bond in polysubstituted 5-nitrosopyrimidines.


The formation of strong intramolecular hydrogen bonds was observed in a series of 2-amino-5-nitrosopyrimidines with alkylamino and arylamino substituents at positions 4 and 6. Mixtures of two rotamers differing in the orientation of the nitroso group were observed in the NMR spectra of the compounds where two distinct intramolecular hydrogen bonds could be… (More)
DOI: 10.1021/jo401441z


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