[GRAPHICS]Cerium(III) chloride heptahydrate and sodium iodide in boiling acetonitrile promote cyclization of 3-hydroxyalkenoic acids esters giving 5-substituted tetrahydrofuranacetic acid esters and 6-substituted tetrahydropyranacetic acid esters in fair to good yield and with complete retention of the absolute configuration of the starting 3-hydroxy ester.
Marotta, E., Foresti, E., Marcelli, T., Peri, F., Righi, P., Scardovi, N., et al. (2002). CeCl3·7H2O−NaI Catalyzed Hydrooxacyclization of Unsaturated 3-Hydroxy Esters. ORGANIC LETTERS, 4(25), 4451-4453 [10.1021/ol026955z].
CeCl3·7H2O−NaI Catalyzed Hydrooxacyclization of Unsaturated 3-Hydroxy Esters
Marotta, Emanuela;Foresti, Elisabetta;Peri, Francesca;Righi, Paolo;Scardovi, Noemi;Rosini, Goffredo
2002
Abstract
[GRAPHICS]Cerium(III) chloride heptahydrate and sodium iodide in boiling acetonitrile promote cyclization of 3-hydroxyalkenoic acids esters giving 5-substituted tetrahydrofuranacetic acid esters and 6-substituted tetrahydropyranacetic acid esters in fair to good yield and with complete retention of the absolute configuration of the starting 3-hydroxy ester.File in questo prodotto:
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