I. Mohammadpoor-baltork et H. Aliyan, Montmorillonite K-10: a mild, inexpensive and convenient catalyst for synthesis of thiiranes from oxiranes under non-aqueous conditions, J CHEM R-S, (3), 2000, pp. 122-123
Montmorillonite K-10 catalyses the conversion of oxiranes to the correspond
ing thiiranes in the presence of thiourea efficiently and the yields obtain
ed are excellent.