Hydroformylation of phosphine-bearing terminal alkenes can lead to a complete reversal of regioselection to that observed for simpler a I kenes. ... Over the last few dzcades the hydroformylation of alkenes (the '0x0' reaction) has found important applications in industrial syntheses. 172 The emphasis in these processes has been on selective production of linear products (2) and (4) (Scheme l), which has been achieved through the appropriate choice of metal and ligands.3 R