alkoxy การใช้

• They also found that introducing alkoxy substituents to the aluminum hydride decreases the reducing ability.
• This transformation is simply the replacement of the hydroxyl group by alkoxy or aryloxy groups.
• After the condensation a hydrogen-atom is added to one of the alkoxy groups.
• Additionally, substitution of hydrogen for chiral alkoxy groups in these reagents enables asymmetric reductions.
• Some of the most effective directing substituent groups are alkoxy, amido, sulfoxide, sulfonyl.
• A chemical exchange takes place between the alkoxy groups of an ester compound by an alcohol.
• The big difference is that the alkoxy substituents allow the polymer to be melt-processed.
• The alkoxy group is a poor leaving group and therefore an E1cB elimination reaction mechanism is proposed.
• The carbonyl group is probed using typically hydrazide-or alkoxy amine-functionalized dyes or other compounds.
• Alkoxy-substituted PPVs are generally easier to oxidize than the parent PPV and hence have much higher conductivities.
• Yet as an aromatic substituent the thio group is less effective as an activating group than the alkoxy group.
• The initial nanotube salt can function as an polymerization initiator and can react with peroxides to form alkoxy functionalized nanotubes
• To illustrate, consider the alkoxy radical-catalyzed, anti-Markovnikov reaction of hydrogen bromide to an alkene.
• Chelation control using Lewis acids such as magnesium bromide can lead to high stereoselectivities for reactions of ?-alkoxy aldehydes.
• Finally C9-triazole derivatives of DANA containing an alkoxy group with a nanomolar activity against hNEU4 isoenzyme have been reported.
• This behavior is a consequence of the electronic influence of the alkoxy groups that diminish the Lewis acidity of the boron centre.
• Incorporation of various side groups ( alkyl, alkoxy, or phenyl ) increases the solubility of the polymer and gives higher molecular weights.
• A trialkoxyborane can react with lithium containing organic molecules to eliminate lithium and one or two alkoxy groups to make boronic and borinic esters.
• In practice, the alcohol / alkoxide solvating mixture must match the alkoxy components of the reacting esters to minimize the number of different products.
• The alkoxy portion of the ester must be a relatively good leaving group . ethyl esters, which yields methoxide and ethoxide, respectively, are commonly used.