Interaction | Reaction | Process     Data Page

Isobutene can be Koch carbonylated to trimethylacetic acid.

The reaction proceeds via protonation of the alkene leading to a carbenium ion. Several acids can be used including HF, sulfuric, phosphoric. These can be used alone or in combination with Olah type super acids.

With longer reaction times, all butene isomers will rearrange to trimethylacetic acid.

Industrial Organic Chemistry, 3rd. Ed. K. Weissermel, H.-J. Arpe, VCH (1997)
  +  
CO
  +  
H2O
  +  
H+
         
Reactant Page Go To Go To
2-Methylpropene     Reactions Using    Reactions Forming
Carbon monoxide     Reactions Using    Reactions Forming
Water     Reactions Using    Reactions Forming
Proton Catalyst    Reactions Using    Reactions Forming
2,2-Dimethylpropanoic acid     Reactions Using    Reactions Forming

Interaction, Reaction, Process defined as:
Addition: Electrophilic Protonation
Industrial Process: Organic

© Mark R. Leach 1999 –

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