可将2-苯基茚基膦配体原位转变为阴离子膦配体,并用于DME中钯催化的Buchwald / Hartwig胺化反应中,从芳基氯化物,溴化物和碘化物得到的胺化产物收率良好。31 P NMR研究表明,阴离子膦的共振出现在(2-苯基茚基)-二环己基phospho盐和(2-苯基茚基)二环己基膦盐之间。计算结果与实验结果一致。
可将2-苯基茚基膦配体原位转变为阴离子膦配体,并用于DME中钯催化的Buchwald / Hartwig胺化反应中,从芳基氯化物,溴化物和碘化物得到的胺化产物收率良好。31 P NMR研究表明,阴离子膦的共振出现在(2-苯基茚基)-二环己基phospho盐和(2-苯基茚基)二环己基膦盐之间。计算结果与实验结果一致。
molecular structures of complexes 6, 8 and 9 have been determined by single-crystal X-ray diffraction analysis. In addition, complexes 8 and 9 have been found to catalyze the acceptorless dehydrogenation of alcohols in toluene. 9 displayed high activity and different substrates, including cyclic and linear alcohols, were efficiently oxidized to ketones by using 2.0 mol% of catalyst.
Dinuclear indenyl ruthenium complexes were prepared and characterized using X-ray crystallography. Their crystal structures revealed the first examples of indenyl complexes containing an unusual η3 coordinationmode with bonding through the junction carbon and the adjacent carbons of the five- and six-membered rings of the indenyl ligand.
the novel trinuclearruthenium clusters (μ3‐η1:η2:η5–2‐phenyl‐3‐Cy2PC9H4)Ru3(CO)8 (1c) and [μ2‐η1–2‐(pyridin‐2‐yl)‐3‐Cy2PC9H6]Ru3(CO)9 (4a), respectively, via C─H bond cleavage. (2‐Mesityl‐1H‐inden‐3‐yl)dicyclohexylphosphine (2) reacted with Ru3(CO)12 in refluxing heptane to give the trinuclearruthenium cluster [μ‐2‐mesityl‐(3‐Cy2PC9H5)](μ2‐CO)Ru3(CO)9 (2c) via C─H bond cleavage and carbonyl insertion
用当量的(2-苯基-1 H-茚满-3-基)二环己基膦(1)和(2-吡啶基-1 H茚满-1-基)二环己基膦(4)处理Ru 3(CO)12回流庚烷,得到新颖的三核钌簇(μ 3 -η 1:η 2:η 5 -2-苯基-3--CY 2 PC 9 ħ 4)的Ru 3(CO)8(1C)和[μ 2 -η 1 –2‐(吡啶-2-基)‐3‐Cy 2 PC 9 H 6]的Ru 3(CO)9(图4a),分别通过C ─ H键裂解。在回流庚烷中,(2-Mesityl-1 H-茚满-3-基)二环己基膦(2)与Ru 3(CO)12反应生成三核钌簇[μ-2-mesityl-(3-Cy 2 PC 9 H 5)](μ 2 -CO)的Ru 3(CO)9(图2c)通过C ─ H键断裂和羰基插入。2-(蒽-9-基)-1 H-茚满-3-基二环己基膦(3)与Ru 3反应(CO)12在回流的正庚烷,得到双核钌簇[μ 2 -η 3:η 3 -2-(蒽-9-基)-3-CY
Preparation of anionic phosphine ligands in situ for the palladium-catalyzed Buchwald/Hartwig amination reactions of aryl halides
2-Phenylindenyl phosphineligand can be changed into anionic phosphineligand in situ and utilized in the palladium-catalyzed Buchwald/Hartwig amination reactions in DME, providing good to excellent yields of amination products from aryl chlorides, bromides and iodides. 31P NMR studies show that the resonance for the anionic phosphine appeared between those of the (2-phenylindenyl)-dicyclohexyl phosphonium
可将2-苯基茚基膦配体原位转变为阴离子膦配体,并用于DME中钯催化的Buchwald / Hartwig胺化反应中,从芳基氯化物,溴化物和碘化物得到的胺化产物收率良好。31 P NMR研究表明,阴离子膦的共振出现在(2-苯基茚基)-二环己基phospho盐和(2-苯基茚基)二环己基膦盐之间。计算结果与实验结果一致。