6.8: Epoxidation - Chemistry LibreTexts
An epoxidation is the transfer of an oxygen atom from a peroxy compound to an alkene. Peroxides contain O-O bonds, which are relatively weak and reactive. To simplify a little bit, just look at the reaction from the point of view of the alkene.
Epoxide - Wikipedia
Epoxide. A generic epoxide. In organic chemistry, an epoxide is a cyclic ether, where the ether forms a three-atom ring: two atoms of carbon and one atom of oxygen. This triangular structure has substantial ring strain, making epoxides highly reactive, more so than other ethers.
Epoxidation - Chemistry LibreTexts
2023年1月23日 · The epoxidation reaction is believed to occur in a single step with a transition state incorporating all of the bonding events shown in the equation. Consequently, epoxidations by peracids always have syn-stereoselectivity, and seldom give structural rearrangement.
Epoxide synthesis by epoxidation - Organic Chemistry Portal
An efficient epoxidation of a broad range of olefins using hydrogen peroxide as the oxidant has been accomplished in the presence of acetic acid and a manganese catalyst that exhibits an uncommon chemoselectivity.
11.3.6 Epoxidation of Alkenes - Chemistry LibreTexts
Oxacyclopropane rings, also called epoxide rings, are useful reagents that may be opened by further reaction to form anti vicinal diols. One way to synthesize oxacyclopropane rings is through the reaction of an alkene with peroxycarboxylic acid.
Epoxidation of Alkenes - Chemistry Steps
The Mechanism of Epoxidation of Alkenes. The oxygen in the peroxide is electron-deficient and is attacked by the p electrons of the π bond. At the same time, the lone pair of the oxygen also acts as a nucleophile attacking one of the carbon atoms of the alkene. The weakness of the O-O bond makes the bond cleavage easier thus acting as a ...
Epoxidation - ChemTalk
What is Epoxidation? Epoxidation is a type of reaction that leads to the formation of an epoxide, a cyclic ether with a three-membered ring made up of two carbon atoms and an oxygen atom. This is done through the addition of a singular oxygen atom to an alkene.
Epoxidation - Organic Chemistry - Socratic
2015年11月25日 · Epoxidation is a reaction that creates an epoxide, cyclic ether compound containing a three atom ring. Because of the steric strain, epoxides are significantly more reactive than general ether compounds.
Epoxidation of Alkenes — Organic Chemistry Tutor
Epoxidation of alkenes with mCPBA or Prilezhaev reaction is a way to make epoxides. In this tutorial we'll go over the mechanism and examples.
8.7: Oxidation of Alkenes - Epoxidation and Hydroxylation
Oxacyclopropane Synthesis by Peroxycarboxylic Acid. One way to oxidized a double bond is to produce an oxacyclopropane ring. Oxacyclopropane rings, also called epoxide rings, are useful reagents that may be opened by further reaction to form anti vicinal diols.