2021年7月31日 · Oxacyclopropane (oxirane), the simplest cyclic ether, is an outstanding exception to the generalization that most ethers are resistant to cleavage. Like cyclopropane, the three-membered ring is highly strained and readily opens under mild conditions.

Cyclic ethers are a type of heterocycle with one or more oxygens located in the ring. Many cyclic ethers have common names and are often used as solvents due to their inert nature. These ring structures are also found in many biological molecules such as sugars and DNA.

A cyclic ether is a type of heterocyclic monomer that polymerizes through an ionic mechanism. It is a class of monomers used for mechanistic studies and industrial production of polymeric materials like EO, PO, ECH, or THF.

2024年9月29日 · Cyclic ethers, particularly epoxides, which are three-membered ring ethers known for their high reactivity due to ring strain. It explains the methods of preparing epoxides, such as from alkenes …

2015年1月26日 · Epoxides are 3-membered cyclic ethers which are unusually reactive due to ring strain. Here we show how they are made (2 methods) and their reactions.

The one group of cyclic ethers that behaves differently from open-chain ethers are the three-membered-ring compounds called epoxides, or oxiranes, which we saw in Section 8.7. The strain of the three-membered ring gives epoxides unique chemical reactivity.

A cyclic ether is a type of organic compound that contains an oxygen atom incorporated into a ring structure. These compounds are characterized by the presence of an ether functional group within a closed-loop arrangement of atoms.

Cyclic ethers are a class of organic compounds where an oxygen atom is incorporated into a ring structure. These compounds are characterized by the presence of a cyclic ether functional group, which exhibits unique properties and reactivity compared to their acyclic ether counterparts.

Medium-sized cyclic ethers have been effectively synthesized through intramolecular reductive coupling of dialdehydes in the presence of a hydrosilane and low loadings of AgNTf 2 as catalyst at 25°C. The catalytic system is also suitable for the coupling of two different monoaldehydes to provide unsymmetrical ethers.

In addition to cyclic structures (such as epoxides), ethers can involve multiple oxygen atoms in a carbon chain. For instance, so-called crown ethers are cyclic ethers with multiple oxygen atoms in the ring.