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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Chemistry of heterocyclic compounds 4 (1968), S. 388-389 
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract An increase in the electron-donating capacity of a substitution in position 4 of the pyrimidine ring (OH 〈 SH 〈 NH2) leads to a decrease in the reactivity of a methyl group in position 2. The methyl group in 2-methylpyrimidine is less active than that in 4-methylpyrimidine. The hypothesis has been put forward that the lowering of the reactivity of 2-methylpyrimidine is due to the symmetry of its structure.
    Type of Medium: Electronic Resource
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