phenoxide การใช้

• Space-filling model of part of a chain in the crystal structure of unsolvated sodium phenoxide
• One explanation for the increased acidity over alcohols is resonance stabilization of the phenoxide anion by the aromatic ring.
• "' Sodium phenoxide "'is an organic compound with the formula NaOC 6 H 5.
• Adducts of sodium phenoxide are molecular, such as the cubane [ NaOPh ] 4 ( HMPA ) 4.
• This can be done following two paths which both involve alkylation of an appropriate phenoxide with epichlorohydrin ( ECH ).
• The reactive species is the phenoxide anion ( C 6 H 5 O  " ) formed by deprotonation of phenol.
• When ubiquinol binds to cytochrome b, the pKa of the phenolic group decreases so that the proton ionizes and the phenoxide anion is formed.
• It consists of phenoxide reacting at the oxirane and resulting in an alkoxide, that displaces the adjacent chloride to form a new epoxide ring.
• The diphenoxide ( Na 2 ( OC 6 H 4 ) 2 CMe 2 ) reacts with phosgene to give a chloroformate, which subsequently is attacked by another phenoxide.
• Halogenation of phenols is faster in polar solvents due to the dissociation of phenol, with phenoxide ions being more susceptible to electrophilic attack as they are more electron-rich.
• Galactose oxidase is a thioether bond is believed to lower the oxidation potential of Tyr272 phenoxide, making this phenoxyl more easily oxidized to form the radical in post-translational modification.
• In these examples, the Li 2 CO 3 ) removes the acidic proton to form the carboxylate or phenoxide anion, which serves as the nucleophile in the S N 2 substitution.
• Under normal circumstances, phenoxide is more reactive at the oxygen position, but the oxygen position is a " hard " nucleophile whereas the alpha-carbon positions tend to be " soft ".
• In these compounds tetradentate Schiff-base phenoxide ( salophen ) and ?-diketonate ligands are bound along the equatorial plane, which stabilizes the U V species obtained by the single electron reduction of U VI species.