Figure 4.
Energy diagram showing the energies (in kcal mol−1) and structures of the reactants for the methylation of 4(3H)-pyrimidone 2, corresponding to the second step of the formation mechanism illustrated in Route 3 (Fig. 1).
Energy diagram showing the energies (in kcal mol−1) and structures of the reactants for the methylation of 4(3H)-pyrimidone 2, corresponding to the second step of the formation mechanism illustrated in Route 3 (Fig. 1).