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A common diol reaction to produce a cyclic ether 1,2-diols and 1,3-diols can be protected using a protecting group. [ 13 ] Protecting groups are used so that the functional group does not react to future reactions.
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. They are produced on a large scale for many applications.
A cyclic ether and high-boiling solvent (b.p. 101.1 °C). Tetrahydrofuran (THF) A cyclic ether, one of the most polar simple ethers that is used as a solvent. Anisole (methoxybenzene) An aryl ether and a major constituent of the essential oil of anise seed. Crown ethers: Cyclic polyethers that are used as phase transfer catalysts. Polyethylene ...
Particularly common spiro compounds are ketal (acetal) formed by condensation of cyclic ketones and diols and dithiols. [15] [16] [17] A simple case is the acetal 1,4-dioxaspiro[4.5]decane from cyclohexanone and glycol. Cases of such ketals and dithioketals are common.
Like BPA, CBDO is a diol with a structure suitable for making polyesters. CBDO’s C 4 ring is sufficiently rigid to prevent the two OH groups from forming cyclic structures. Unlike BPA, there is no current evidence of carcinogenic or toxic effects from CBDO-based consumer products.
For example, diagrammed below is an excerpt of the synthesis of an analogue of Mitomycin C by Danishefsky. [110] Part of the synthesis of an analogue of Mitomycin C with modified reactivity through protecting-group exchange. The exchange of a protecting group from a methyl ether to a MOM-ether inhibits here the opening of an epoxide to an aldehyde.
Ether cleavage refers to chemical substitution reactions that lead to the cleavage of ethers. Due to the high chemical stability of ethers, the cleavage of the C-O bond is uncommon in the absence of specialized reagents or under extreme conditions. [1] [2] In organic chemistry, ether cleavage is an acid catalyzed nucleophilic substitution reaction.
Toggle Cyclic subsection. 4.1 Three atoms in ring. 4.1.1 No oxygen in ring. ... 2-Propene-1,2-diol; Oxyethenol. 1-Methoxyethenol; Cyclic. Three atoms in ring