Novel Synthesis of Heterocycles Using Zirconium-Catalyzed Diene Cyclization
摘要:
The catalytic cyclization of the diene 1 by Cp(2)ZrCl(2) in the presence of BuMgBr gives the hexahydroindole derivative 2. The stereochemistry of the zirconacycle 10 is different from that of the zirconacycle 7, which is obtained from 1 under stoichiometric conditions. Carbon-carbon bond formation results from treatment of the intermediary magnesium complex 8 with various electrophiles, such that various heterocycles were synthesized.
Novel Synthesis of Heterocycles Using Zirconium-Catalyzed Diene Cyclization
摘要:
The catalytic cyclization of the diene 1 by Cp(2)ZrCl(2) in the presence of BuMgBr gives the hexahydroindole derivative 2. The stereochemistry of the zirconacycle 10 is different from that of the zirconacycle 7, which is obtained from 1 under stoichiometric conditions. Carbon-carbon bond formation results from treatment of the intermediary magnesium complex 8 with various electrophiles, such that various heterocycles were synthesized.