This usually Dehydration reaction to give the unsaturated carbonyl compound.

It is a useful reagent in organic chemistry for the formation of carbonyl compounds.

In organic chemistry, these include ketones and many related carbonyl compounds.

The chart below shows the extent of hydration of some carbonyl compounds.

They form by treatment of the carbonyl compound with 1,3-propanedithiol under conditions that remove water from the system.

The fragments can simply recombine to the original carbonyl compound (path A).

After addition of the allylsilane, ozonolysis provides the corresponding carbonyl compound.

No other element forms a carbonyl compound under the mild conditions used in the process.

The negative charge can then attack the other carbonyl compound, forming the bond.

With asymmetric epoxides, two different carbonyl compounds can potentially form.