Hydroboration of mono-substituted allenes: A general synthetic route to the higher crotylboranes and anti-3-alkyl/aryl-4-hydroxy-1-alkenes

Article abstract of DOI:10.1016/S0040-4039(96)02255-1

Hydroboration of mono-substituted allenes with Chx₂BH at 0°C leads to the corresponding (E)-substituted allylboranes, known as higher crotylboranes, exclusively. These higher crotylboranes react with aldehydes, and on oxidation, provide the cor