A novel and practical synthesis of polycyclic fluoranthenes
作者:Bongsup P. Cho
DOI:10.1016/0040-4039(95)00314-3
日期:1995.4
A novel and general preparation of polycyclic fluoranthenes is described. The synthesis involves a Michael addition of silyl enol ethers to dibenzofulvene followed by cyclization and aromatization.
Attempted synthesis of Fjord-region containing polycyclic fluoranthenes reveals a steric-driven double Wagner-Meerwein rearrangement
作者:Bongsup P. Cho、Li Zhou
DOI:10.1016/0040-4039(96)00065-2
日期:1996.3
A double Wagner-Meerwein rearrangement takes place commonly in the synthesis of sterically hindered polycyclic fluoranthenes via cyclodehydration reactions and the extent of intramolecular steric crowding within the initially formed tertiary cationic intermediate controls the equilibrium between the expected and the rearranged product.