Origins of the loss of concertedness in pericyclic reactions: Theoretical prediction and direct observation of stepwise mechanisms in [3 + 2] thermal cycloadditions

1. Vivanco, S.
2. Lecea, B.
3. Arrieta, A.
4. Prieto, P.
5. Morao, I.
6. Linden, A.
7. Cossío, F.P.