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SiliaBond Reagents & Oxidants for Michael Addition

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  1. SiliaBond Dimethylamine (DMA) (R45030B)

    SiliaBond Dimethylamine (DMA) (R45030B)

    SiliaBond Dimethylamine is a silica bound tertiary amine base that can be used in most applications requiring a tertiary amine, particularly as a HCl sponge. Silica bound ammonium salt by-products are easily separated by filtration. This dimethylamine immobilized on silica gel can be used as a base catalyst in Michael or Knoevenagel reactions. It can also be used as a catalyst for alkane oxidation.
  2. SiliaBond Guanidine (GUA) (R68230B)

    SiliaBond Guanidine (GUA) (R68230B)

    SiliaBond Guanidine is a silica-supported diisopropylguanidine ligand. It is a very powerful scavenger for the chelating of organic acids in general, especially boronic acids and phenolic acids. It may also be used as a very strong base. It is sufficiently basic to deprotonate moderately acidic hydrogens, as in the alkylation of amines and phenols (Williamson ether synthesis) and the esterification of carboxylic acids using alkyl halides.

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