acetal group造句

• It is like a cyclic acetal but with one of the oxygen atoms in the acetal group being replaced by a peroxide group.
• "' Solketal "'is a protected form of glycerol with an isopropylidene acetal group joining two neighboring hydroxyl groups.
• Yong Qiang Tu's synthesis of the Alzheimer's disease medication galanthamine likewise used this reaction in the presence of an acid-sensitive acetal group.
• In this conversion, the two carbonyl carbons of the 2-oxoaldehyde are oxidized and reduced, respectively, the aldehyde being oxidized to a carboxylic acid and the acetal group being reduced to an alcohol.
• Another example is a photochemical [ 2 + 2 ] cycloaddition with two alkene groups tethered through a silicon acetal group ( racemic, the other enantiomer not depicted ), which is subsequently cleaved by TBAF yielding the endo-diol.
• For the generation of the other reactive group the acetal group was removed to give aldehyde "'37 "'which was subsequently converted to the terminal alkene "'38 "'in a Wittig reaction involving methylenetriphenylphosphorane.