Thexylborane
Thexylborane is a borane with the formula 2. A colorless liquid, it is a rare, easily accessed monoalkylborane. It is produced by the hydroboration of tetramethylethylene:Reactions
Thexylborane is generated in situ. In solution, it isomerizes over the course several days to the 2,3-dimethyl-1-butyl derivative, shown as the monomer here:
Thexylborane allows the atom-economical synthesis of ketones from a pair of alkenes:
The main point is that the thexyl group does not migrate.
