of bromoform in the presence of sodium hydroxide results in
the formation of a carbene which reacts with the double bond
to form a cyclopropane ring.
Addition of a peroxyacid to an alkene results in an epoxide.
Addition of ozone to an alkene results in oxidative cleavage,
the alkene breaking open to the ketone (or aldehyde).
Oxidative Cleavage by Permanganate
The oxidative cleavage by permanganate is almost identical
to ozonolysis except that it is a stronger oxidizer and will
oxidize aldehydes to carboxylic acids.