Asymmetric intramolecular selenocyclisation of alkenoic acids, alkenols and olefinic urethanes using chiral ferrocenylselenenyl cations proceeds smoothly to give the corresponding lactones, cyclic ethers and nitrogen-heterocyclic compounds, respectively, in moderate yields with very high diastereoselectivities.
Y. Nishibayashi, S. K. Srivastava, H. Takada, S. Fukuzawa and S. Uemura, J. Chem. Soc., Chem. Commun., 1995, 2321 DOI: 10.1039/C39950002321
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