摘要:
Described is a carbonylation process using novel homogeneous trihydrocarbyl silyl-substituted alkyl diaryl phosphine transition metal complexes of the general formula:[(Ar.sub.2 PQ).sub.y SiR.sub.4 -y].sub.g (MX.sub.n).sub.swherein Ar is a C.sub.6 to C.sub.10 aromatic hydrocarbyl radical, Q is a C.sub.1 to C.sub.30 saturated straight chain divalent radical, R is a C.sub.1 to C.sub.10 hydrocarbyl, wherein Ar, Q and R, can be substituted or unsubstituted, y is 1 to 4, g times y is 1 to 6, M is a transition metal selected from the group consisting of Group VIII transition metals, X is an anion or organic ligand excluding halogen satisfying the valence and coordination sites of the metal, n is 2 to 6 and s is 1 to 3, are disclosed. These materials exhibit high thermal stability and are superior catalysts for the selective hydroformylation of olefins, particularly in the presence of excess quantities of ligand of the formula:(Ar.sub.2 PQ)ySiR.sub.4-ywherein Ar, Q, R, and y are as previously defined.Specifically, tris-(trimethyl silyl-ethyl diphenyl phosphine) rhodium carbonyl hydride,[(CH.sub.3).sub.3 Si-CH.sub.2 CH.sub.2 -PPh.sub.2 ].sub.3 Rh(CO)Hand tris [bis-(diphenylphosphinoethyl)dimethyl silane] rhodium carbonyl hydride,[(CH.sub.3).sub.2 Si-CH.sub.2 CH.sub.2 -PPh.sub.2 ].sub.3 Rh(CO)H,are selective olefin hydroformylation catalysts, particularly in the presence of excess trihydrocarbyl silyl-substituted alkyl diaryl phosphine ligand.
摘要:
Described is a carbonylation process using novel homogeneous trihydrocarbyl silyl-substituted alkyl diaryl phosphine transition metal complexes of the general formula:[(Ar.sub.2 PQ).sub.y SiR.sub.4 --y].sub.g (MX.sub.n).sub.swherein Ar is a C.sub.6 to C.sub.10 aromatic hydrocarbyl radical, Q is a C.sub.1 to C.sub.30 saturated straight chain divalent radical, R is a C.sub.1 to C.sub.10 hydrocarbyl, wherein Ar, Q and R, can be substituted or unsubstituted, y is 1 to 4, g times y is 1 to 6, M is a transition metal selected from the group consisting of Group VIII transition metals, X is an anion or organic ligand excluding halogen satisfying the valence and coordination sites of the metal, n is 2 to 6 and s is 1 to 3, are disclosed. These materials exhibit high thermal stability and are superior catalysts for the selective hydroformylation of olefins, particularly in the presence of excess quantities of ligand of the formula:(Ar.sub.2 PQ).sub.y SiR.sub.4 -.sub.ywherein Ar, Q, R, and y are as previously defined.Specifically, tris-(trimethyl silyl-ethyl diphenyl phosphine) rhodium carbonyl hydride,[(CH.sub.3).sub.3 Si--CH.sub.2 CH.sub.2 -PPh.sub.2 ].sub.3 Rh(CO)Hand tris [bis-(diphenylphosphinoethyl) dimethyl silane] rhodium carbonyl hydride,[(CH.sub.3).sub.2 Si--CH.sub.2 CH.sub.2 -PPh.sub.2 ].sub.3 Rh(CO)H,are selective olefin hydroformylation catalysts, particularly in the presence of excess trihydrocarbyl silyl-substituted alkyl diaryl phosphine ligand.
摘要:
Described is a carbonylation process using novel homogeneous trihydrocarbyl silyl-substituted alkyl diaryl phosphine transition metal complexes of the general formula:[(Ar.sub.2 PQ).sub.y SiR.sub.4 -y].sub.g (MX.sub.n).sub.swherein Ar is a C.sub.6 to C.sub.10 aromatic hydrocarbyl radical, Q is a C.sub.1 to C.sub.30 saturated straight chain divalent radical, R is a C.sub.1 to C.sub.10 hydrocarbyl, wherein Ar, Q and R, can be substituted or unsubstituted, y is 1 to 4, g times y is 1 to 6, M is a transition metal selected from the group consisting of Group VIII transition metals, X is an anion or organic ligand excluding halogen satisfying the valence and coordination sites of the metal, n is 2 to 6 and s is 1 to 3, are disclosed. These materials exhibit high thermal stability and are superior catalysts for the selective hydroformylation of olefins, particularly in the presence of excess quantities of ligand of the formula:(Ar.sub.2 PQ).sub.y SiR.sub.4-ywherein Ar, Q, R, and y are as previously defined.Specifically, tris-(trimethyl silyl-ethyl diphenyl phosphine) rhodium carbonyl hydride,[(CH.sub.3).sub.3 Si--CH.sub.2 CH.sub.2 --PPh.sub.2 ].sub.3 Rh(CO)Hand tris [bis-(diphenylphosphinoethyl)dimethylsilane] rhodium carbonyl hydride,[(CH.sub.3).sub.2 Si--CH.sub.2 CH.sub.2 --PPh.sub.2 ].sub.3 Rh(CO)H,are selective olefin hydroformulation catalysts, particularly in the presence of excess trihydrocarbyl silyl-substituted alkyl diaryl phosphine ligand.
摘要:
Novel homogeneous trihydrocarbyl silyl-substituted alkyl diaryl phosphine transition metal complexes of the general formula:[(Ar.sub.2 PQ).sub.y SiR.sub.4-y ].sub.g (MX.sub.n).sub.swherein Ar is a C.sub.6 to C.sub.10 aromatic hydrocarbyl radical, Q is a C.sub.1 to C.sub.30 saturated straight chain divalent radical either unsubstituted or substituted, R is an unsubstituted C.sub.1 to C.sub.10 hydrocarbyl, C.sub.1 to C.sub.10 monosubstituted hydrocarbyl, phenyl radical, y is 1 to 4, g times y is 1 to 6, M is a transition metal selected from the group consisting of Group VIII transition metals, X is an anion or organic ligand excluding halogen satisfying the coordination sites of the metal, n is 2 to 6 and s is 1 to 3, are disclosed. These materials are superior catalysts for the selective hydroformylation of olefins, particularly in the presence of excess quantities of the ligand of the formula:[(Ar.sub.2 P)[Q].sub.y SiR.sub.4-y ]wherein Ar, Q, R, and y are as previously defined.
摘要翻译:新型均相三烃基甲硅烷基取代的通式为[(Ar2PQ)ySiR4-y] g(MXn)的烷基二芳基膦过渡金属络合物,其中Ar为C6至C10芳族烃基,Q为C1至C30饱和直链 未取代或取代的二价基团,R为未取代的C1至C10烃基,C1至C10单取代的烃基,苯基,y为1至4,g为y为1至6,M为选自以下的过渡金属: VIII族过渡金属,X是不含卤素的阴离子或有机配体,满足金属的配位点,n为2-6,s为1〜3。 这些材料是用于烯烃的选择性加氢甲酰化的优异催化剂,特别是在过量的下式配位体存在下:[(Ar 2 P)[Q] y SiR 4-y]其中Ar,Q,R和y如前所定义 。
摘要:
Branched alkyl diaryl phosphine rhodium carbonyl hydride complexes are surprisingly effective, stable and selective hydroformylation catalysts particularly in the presence of a large excess of t-phosphine ligands. As such, they are advantageously employed as catalysts in a novel low pressure rhodium hydroformylation process producing normal and iso aldehydes by reacting olefins with H.sub.2 and CO.
摘要:
Described is a carbonylation process using novel homogeneous trihydrocarbyl silyl-substituted alkyl diaryl phosphine transition metal complexes of the general formula:[(Ar.sub.2 PQ).sub.y SiR.sub.4 --y].sub.g (MX.sub.n).sub.swherein Ar is a C.sub.6 to C.sub.10 aromatic hydrocarbyl radical, Q is a C.sub.1 to C.sub.30 saturated straight chain divalent radical, R is a C.sub.1 to C.sub.10 hydrocarbyl, wherein Ar, Q and R, can be substituted or unsubstituted, y is 1 to 4, g times y is 1 to 6, M is a transition metal selected from the group consisting of Group VIII transition metals, X is an anion or organic ligand excluding halogen satisfying the valence and coordination sites of the metal, n is 2 to 6 and s is 1 to 3, are disclosed. These materials exhibit high thermal stability and are superior catalysts for the selective hydroformylation of olefins, particularly in the presence of excess quantities of ligand of the formula:(Ar.sub.2 PQ)ySiR.sub.4-ywherein Ar, Q, R, and y are as previously defined.Specifically, tris-(trimethyl silyl-ethyl diphenyl phosphine) rhodium carbonyl hydride,[(CH.sub.3).sub.3 Si--CH.sub.2 CH.sub.2 --PPh.sub.2 ].sub.3 Rh(CO)Hand tris [bis-(diphenylphosphinoethyl)dimethyl silane] rhodium carbonyl hydride,[(CH.sub.3).sub.2 Si--CH.sub.2 CH.sub.2 --PPh.sub.2 ].sub.3 Rh(CO)H,are selective olefin hydroformylation catalysts, particularly in the presence of excess trihydrocarbyl silyl-substituted alkyl diaryl phosphine ligand.
摘要:
The present invention is an asphaltene dispersant containing an aromatic, a sulfonic acid head, and an alkyl tail containing 16 carbons or more and at least one branch of a methyl or longer alkyl. Preferably, the aromatic is a fused two ring aromatic and the tail is a two, branched alkyl tail of 30 carbons or longer.