Reactions of epoxyalkanes taking place with expansion of the oxiran ring

CONTENTS
I. Introduction 671
II. Reactions with $\mathrm{SO}_3$, $\mathrm{SO}_2$, and $\mathrm{SeO}_2$ 671
III. Reactions with carbonyl sulphide and carbon disulphide 672
IV. Reactions of epoxyalkanes with isocyanates 673
V. Reactions of epoxyalkanes with compounds containing $>\!\!\mathrm{C}=\mathrm{N}-$, $>\!\!\mathrm{C}\equiv\mathrm{N}-$, or $>\!\!\mathrm{C}=\mathrm{C}=\mathrm{O}$ groups 674
VI. Reactions of epoxyalkanes with isothiocyanates 675