Polymer-supported chain homologation

Addition of hept-1-ene to a suspension of polystyrene-bound forms of hydridocarbonyltris(triphenylphosphine)rhodium(I) and methylenetriphenylphosphorane in tetrahydrofuran, under a hydrogen/carbon monoxide atmosphere (60 °C; 120 lb in–2), produces 2-methylheptanal (10%), n-octanal (45%), n-decanal (12%), n-dodecanal (2%), and n-tetradecanal (0.3%) as major products.