Final answer:
The given diene can undergo ring-closing metathesis in the presence of a ruthenium catalyst to form a cyclic compound.
Step-by-step explanation:
The given diene can undergo ring-closing metathesis in the presence of a ruthenium catalyst. In ring-closing metathesis, a double bond in the diene reacts with another double bond to form a cyclic product. The ruthenium catalyst helps facilitate this reaction. The expected product of this reaction is a cyclic compound formed by the closure of the diene. For example, if the diene is butadiene, it can react with another alkene to form a cyclic six-membered compound. The specific products obtained will depend on the structure of the given diene and the alkene it reacts with.