Question

Four-membered fully saturated heterocycle containing one oxygen is called

• A. Oxiren
• B. Oxiran
• C. Oxet
• D. Oxetane

Answer 1

The Correct Option is D

The question is asking for the name of a four-membered fully saturated heterocycle containing one oxygen atom. Let's analyze the options:

1. Oxiren: There is no commonly recognized heterocyclic compound named Oxiren in organic chemistry.
2. Oxiran: This term does not correspond to the structure we are considering. Oxiran is another name for Epoxide, which is a three-membered ring containing one oxygen atom.
3. Oxet: This term is incomplete for our required context and not conventional in chemical nomenclature.
4. Oxetane: This is the name of a four-membered fully saturated heterocyclic compound with one oxygen atom in the ring. Oxetane has the chemical formula \(C_3H_6O\), where the ring consists of three carbon atoms and one oxygen atom.

Thus, the correct answer is Oxetane.

Oxetanes are significant due to their strained ring structure, which often makes them reactive with various chemical reagents, and they find applications in material science and pharmaceuticals.

In summary, among the provided options, Oxetane correctly represents a four-membered fully saturated heterocycle with one oxygen.