Beilstein J. Org. Chem.2008,4, No. 22, doi:10.3762/bjoc.4.22
desirable process but one of the most difficult to achieve in practice.
Pyrimidines are electron-deficient aromatic systems and, when halogenated, become very useful substrates for a variety of nucleophilic aromatic substitution (SNAr) processes [9] and, since numerous chloropyrimidines are commercially
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Graphical Abstract
Figure 1:
Pharmaceuticals with pyrimidine sub-units.