Royal Society of Chemistry, Organic and Biomolecular Chemistry, 2(18), p. 292-304, 2020
DOI: 10.1039/c9ob02467k
Full text: Unavailable
The change of C–H by N: in these aromatic compounds decreases the ring electron density (RED), thus decreasing the activation energies of the aza Diels–Alder reactions mainly by the loss of the aromatic character of the reagents.