Intramolecular Cyclization of 3,4-Epoxy Alcohols; Oxetane Formation

Abstract
1-(2,3-Epoxypropyl)-1-cyclohexanol (1) and its methyl analogues (2 and 3), when treated with base in 75% aqueous dimethyl sulfoxide, gave the corresponding oxetanes (9–11) as the main products, while treatment of compound 1 under anhydrous conditions afforded the oxolane dimer (17) as the sole identified product.

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