Chemistry Letters, Vol.29, No.3, 272-273, 2000
Effect of molecular sieves and methanol on the endo-selectivity in La(OTf)(3)(-) catalyzed cyclization of 5-hydroxy-2-methoxymethyl-1,2-epoxide system
Molecular sieves improved the reproducibility of the cyclization catalyzed by La(OTf)(3) in the 5-hydroxy-2-methoxymethyl-1,2-epoxide system, and addition of methanol raised the desired endo-selectivity.