A study on the scope of the photochemical ring contraction of substituted 2-amino-3-cyano-4H-pyrans to cyclobutenes: Crystal structure of 3-carbamoyl-3-cyano-1-ethoxycarbonyl-4-isopropyl-2-phenylcyclobutene

1. Armesto, D.
2. Albert, A.
3. Cano, F.H.
4. Martín, N.
5. Ramos, A.
6. Rodriguez, M.
7. Segura, J.L.
8. Seoane, C.