Rhodium-Catalyzed Reaction of 1-Alkynylphosphines with Water Yielding (<i>E</i>)-1-Alkenylphosphine Oxides
作者:Azusa Kondoh、Hideki Yorimitsu、Koichiro Oshima
DOI:10.1246/bcsj.81.502
日期:2008.4.15
Treatment of 1-alkynylphosphines with a rhodium catalyst in 1,4-dioxane/H2O at reflux provides (E)-1-alkenylphosphine oxides in good yields with perfect stereoselectivity. The reaction proceeds as follows. Oxidative addition of 1-alkynylphosphine to rhodium followed by hydrolysis yields the corresponding terminal alkyne and diphenylphosphine oxide. Rhodium-catalyzed hydrophosphinylation of the terminal alkyne then proceeds to afford (E)-1-alkenylphosphine oxide.
Copper-Catalyzed anti-Hydrophosphination Reaction of 1-Alkynylphosphines with Diphenylphosphine Providing (<i>Z</i>)-1,2-Diphosphino-1-alkenes
作者:Azusa Kondoh、Hideki Yorimitsu、Koichiro Oshima
DOI:10.1021/ja070048d
日期:2007.4.1
nes and their sulfides. The reaction is highly chemoselective and can be performed even in an aqueous medium. The reaction is reliable enough to realize a gram-scale synthesis of (Z)-1,2-diphosphino-1-alkene. Radical reduction of the diphosphine disulfides with tris(trimethylsilyl)silane yields the parent trivalent diphosphines without suffering from the isomerization of the olefinic geometry. Enantioselective
Reactivity of unsaturated clusters. Phosphoruscarbon bond activation, hydrogen migration and acetylene interconversion in the reactions of 46-electron (H)Ru3(CO)9(μ-PPh2) with Ph2PCCR (R = Ph, But, Pri). X-ray structure of Ru3(CO)9(μ-PPh2)2(μ3-η2-HCCPh): a new type of 5-vertex, 7-skeletal pair cluster
作者:Françoise Van Gastel、Shane A. MacLaughlin、Mike Lynch、Arthur J. Carty、Enrico Sappa、Antonio Tiripicchio、Marisa Tiripicchio Camellini
DOI:10.1016/0022-328x(87)80167-5
日期:1987.6
formally 46-electron cluster HRu3(CO)9(μ-PPh2) result in PC bond cleavage, transfer of a phosphido group onto the cluster, and transfer of hydride to the acetylide. The new species Ru3(CO)7(μ-PPh2)2(μ3-η2-HCCR), of which the derivative with R = Ph has been studied by X-ray diffraction, are representatives of a new class of μ2-η2-| acetylene cluster with NIDO 5-vertex structures.
LIGAND, OLIGOMERIZATION CATALYST COMPRISING SAME, AND METHOD FOR PRODUCING ETHYLENE OLIGOMER BY USING OLIGOMERIZATION CATALYST
申请人:SK Innovation Co., Ltd.
公开号:EP3760634A1
公开(公告)日:2021-01-06
The present invention relates to a ligand, an ethylene oligomerization catalyst comprising same, and a method for selectively producing 1-hexene or 1-octene from ethylene by using the catalyst. The ligand according to the present invention is a bis(diphenylphosphino)ethene with a phosphorus atom substituted with a fluoro-substituted phenyl, and when the ligand is used for ethylene oligomerization, the high temperature activity of the catalyst can be increased.
Ligand, oligomerization catalyst comprising same, and method for producing ethylene oligomer by using oligomerization catalyst
申请人:SK Innovation Co., Ltd.
公开号:US11224870B2
公开(公告)日:2022-01-18
The present invention relates to a ligand, an ethylene oligomerization catalyst including the ligand, and a method for selectively producing 1-hexene or 1-octene from ethylene by using the catalyst. The ligand according to the present invention is a bis(diphenylphosphino)ethene with a phosphorus atom substituted with a fluoro-substituted phenyl, and when the ligand is used for ethylene oligomerization, the high temperature activity of the catalyst can be increased.