摘要:
An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon comprises contacting under polymerization conditions the carbon monoxide and hydrocarbon in the presence of a catalyst composition formed from a compound of certain Group VIII metals, e.g., palladium, an anion of a non-hydrohalogenic acid having a pKa above about 2 but below about 6, and a bidentate ligand of phosphorus wherein at least one of the monovalent phosphorus substituents is aromatic and substituted in a position ortho to the phosphorus with a polar substitutent.
摘要:
An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium salt and a phosphino-substituted sulfonic acid.
摘要:
Polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, e.g., ethylene, are produced in the presence of novel catalyst compositions formed from a palladium compound, an anion of a non-hydrohalogenic acid having a pKa less than about 2 and certain bidentate ligands containing atoms of phosphorus and nitrogen.
摘要:
Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are produced in the presence of a novel catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa less about 4 and an orthosubstitued phenyl phosphine.
摘要:
An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium salt and a phosphino-substituted sulfonic acid.
摘要:
Process for the preparation of carbamates and/or derivatives thereof by reacting an organic compound containing at least one hydroxyl group with carbon monoxide and an organic nitrogeneous compound in the presence of a catalytic system based on palladium and a ligand according to the general formula: ##STR1## wherein L=N, P, As or Sb; R, R.sup.1, R.sup.2 and R.sup.3 are (un)substituted alkyl, aryl, alkaryl or aralkyl or R and R.sup.1 and/or R.sup.2 and R.sup.3 may form a ring together with the atom L to which they are attached; R.sup.4 and R.sup.5 are H or lower alkyl and n=2, 3 or 4, whereas carbon atoms between the groups L may be part of cyclic or non-cyclic unsaturated structures, and in the presence of an acid promoter.
摘要:
A process for the preparation of copolymers of carbon monoxide and one or more ethylenically unsaturated compounds by contacting the monomers, under polymerization conditions, with a catalyst system comprising a) a source of cations of one or more metals of Group VIII of the Periodic Table and b) a bidentate ligand, and c) a minor amount of a compound containing a hydride moiety. Copolymers made by this process generally have low molecular weights.
摘要:
Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, useful as premium thermoplastics, are produced by contacting the carbon monoxide and hydrocarbon reactants under polymerization conditions in the presence of a catalyst complex of hydrocarbylpalladium halide and a bidentate ligand of phosphorus. The catalyst complex is produced by contacting a complex of palladium dihalide and the bidentate phosphorus ligand with a tetrahydrocarbyltin.
摘要:
An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon of at least 3 carbon atoms employs a novel catalyst composition formed from a palladium compound, the anion of a strong non-hydrohalogenic acid, an aliphatic bidentate ligand of phosphorus and a polyalkoxyalkane.
摘要:
A process for the hydroformylation of an olefin which comprises reacting an olefin with carbon monoxide and hydrogen in the process of a complex of rhodium with a compound of the formula:L(OR.sup.1)(OR.sup.2)(OR.sup.3)wherein L is P or As and R.sup.1, R.sup.2 and R.sup.3 are (dis)similar alkyl, aryl, alkaryl or aralkyl groups, provided that at least one of R.sup.1, R.sup.2 or R.sup.3 represents a group --CH.sub.n [CFXY].sub.3-n, wherein n is 1 or 2 and either(a) X and Y both represent F, or(b) one of X and Y represents F and the other represents H or Cl or an (un)substituted (ar)alkyl group, or(c) X represents H or Cl or an (un)substituted (ar)alkyl group and Y represents an (ar)alkyl group whose connecting carbon atom carries at least one F.
摘要翻译:一种烯烃加氢甲酰化的方法,其包括在铑络合物与下式化合物:L(OR1)(OR2)(OR3)(其中L为P或As)的化合物的过程中使烯烃与一氧化碳和氢反应,和 R 1,R 2和R 3是(dis)相似的烷基,芳基,烷芳基或芳烷基,条件是R 1,R 2或R 3中的至少一个表示基团-CH n [CFXY] 3-n,其中n为1或2, (a)X和Y都表示F或(b)X和Y之一表示F,另一个表示H或Cl或(un)取代的(芳)烷基,或(c)X表示H或Cl或 (取代)(芳基)烷基,Y表示连接碳原子携带至少一个F.