Abstract
The Diels–Alder reaction of various pyrimidine ortho-quinodimethanes generated in situ with C 60 gives access to a variety of new fullerodihydroquinazoline derivatives. This variety is increased since substituents on the pyrimidine ring can be easily modified before or after its reaction with C 60. Variable temperature 1H NMR spectra provided thermodynamic parameters related to the boat-to-boat interconversion of the cyclohexene ring fused to the fullerene moiety. The mass spectra of the prepared cycloadducts show that the retro-Diels–Alder process takes place easily with elimination of the corresponding diene molecule.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have