Diastereoselective hydroformylation of Δ4-steroids with rhodium-phosphite catalysts

1. Freixa, Z.
2. Pereira, M.M.
3. Bayón, J.Carles
4. Silva, A.M.S.
5. Salvador, J.A.R.
6. Beja, A.M.
7. Paixão, J.A.
8. Ramos, M.