o-iPr-dppf, X = BAr‘4). These complexes were employed as catalyst precursors for the hydroformylation of 1-hexene in THF either in standard autoclaves or in high-pressure (HP) NMR tubes and IR cells. All catalysts exhibited good activity (TOFs ranging from 700 to 1000 mol aldehyde (mol cat)-1 h-1) and moderate regioselectivity in n-heptanal (67−74%). Irrespective of the rhodium precursor, the HP-NMR experiments
合成了一些通式为[Rh(P-P)(COD)] X的
铑(I)配合物,并通过多核NMR光谱进行了表征(COD =环cta-1,5-二烯; PP = 1,1'-双(
二苯基膦基)
二茂铁,dppf,X = BPh 4,PF 6 ; P = P,1,1'-双(
二苯基膦基)
钌茂茂,dppr,X = BPh 4 ; P = P,1,1'-双(
二苯基膦基) )osmocene,dppo,X = BPH 4,PF 6 ; P-P = 1,1'-双(
二苯基膦基)octamethylferrocene,dppomf,X = BAR” 4 ; P-P =(1,1'-双(二(ö异丙基苯基)膦基)
二茂铁,邻-我P
R-DPPF,X = BAR” 4)。这些配合物在标准高压釜中或在高压(HP)NMR管和IR池中用作
1-己烯在THF中加氢甲酰化的催化剂前体。所有的催化剂表现出良好的活性(的Tofs范围从700到1000摩尔醛(摩尔猫)-