Chemo-, regio-, and stereoselective iron- catalysed hydroboration of alkenes and alkynes

The highly chemo-, regio-, and stereoselective synthesis of alkyl-and vinyl boronic esters with good functional group tolerance has been developed using in situ activation of a bench-stable iron( II) pre-catalyst and pinacolborane (16 examples, 45-95% yield, TOF up to 30 000 mol h(-1)). The first iron-catalysed alkene hydro-germylation is also reported.