Synthesis and conversions of metallocycles. 9. Synthesis of polycyclic aluminocyclopentanes with the participation of (?5-C5H5)2ZrCl2
摘要:
The Cp2ZrCl2-catalyzed (Cp = eta5-C5H5) stereoselective cyclometalation of norbornenes and norbornadienes with AlEt3 was carried out. It led in one stage to the preparation of polycyclic aluminocyclopentanes (ACP). It was shown that the ACP synthesized can be converted into polycyclic thiophanes under the action of elementary sulfur.