Beilstein J. Org. Chem.2023,19, 325–348, doi:10.3762/bjoc.19.28
for catalysis, due to the generally higher abundance and lower toxicity of these elements. Group 13 elements have a rich catalogue of stoichiometric addition reactions to unsaturated bonds but cannot undergo the redox chemistry which underpins transition-metal catalysis. Group13exchange reactions
and develop new catalytic processes, examples of which are the focus of this review.
Keywords: catalysis; group13exchange; hydroboration; main group; transborylation; Introduction
Group 13 compounds have found widespread use in stoichiometric organic transformations, typically in the
functionalisation of unsaturated bonds [1][2][3][4][5], and, more recently, frustrated Lewis pair (FLP) chemistries including small molecule activations and C–H insertion reactions [6][7][8][9][10]. Group13exchange is the transfer of one or more substituents from one group 13 element to another group 13 element