Selective hydroformylation of 1-hexene to branched aldehydes using rhodium complex of modified bulky phosphine and phosphite ligands

► Selective hydroformylation of 1-hexene to branched aldehydes. ► Use of bulky phosphine/phosphite ligands for selective hydroformylation. ► Combination of bulky PNp3 and P(ONp)3 ligands to improve the selectivity of branched aldehydes.