Why Pyridine Is More Basic Than Pyrimidine?
2.4 Pyrimidine Both N Are Slightly Basic. Pyrimidine Is Less Basic Than Pyridine Because of the Inductive, Electron-Withdrawing Effect of the Second N Atom...
Why is pyridine most basic?
Because of the electronegative nitrogen in the pyridine ring, the molecule is relatively electron deficient. ... This lone pair does not overlap with the aromatic π-system ring, consequently pyridine is basic, having chemical properties similar to those of tertiary amines.
Why pyridine is more basic than Pyrazine?
Pyridine is a weaker base than saturated amines of similar structure because its electron pair is in an sp2-hybridized orbital, and the electron pair is more tightly held by the atom. Protonation of a similar nitrogen atom in pyrimidine is more favorable because the charge is delocalized to the second nitrogen atom.