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Article << Previous     |     Next >>   Contents Vol 19(12)

Pyrimidine reactions. XIV. The butylaminolysis of substituted methoxy-and methylthio-pyrimidines

DJ Brown and RV Forster

Australian Journal of Chemistry 19(12) 2321 - 2330
Published: 1966

Abstract

Aminolyses of 2- and 4-methoxy (or methylthio) pyrimidines bearing C- methyl, CC?-dimethyl, 5-bromo, or 5-nitro substituents have proved of value, in the absence of added solvent, for preparing the corresponding n- and t-butyl-aminopyrimidines. When these displacements are followed spectrometrically, the apparent first-order rate constants indicate mild deactivation by additional methyl substituents, moderate activation by a bromo substituent, and profound activation by a nitro substituent. Ionization constants and ultraviolet spectra of relevant pyrimidines are recorded.



Full text doi:10.1071/CH9662321

© CSIRO 1966

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