Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Soldering composition incorporating a flux, characterized in that as flux at least one compound is employed with the general formula ##STR1## in which n is a number from 0 to 6, all groups R.sub.1 to R.sub.6 are identical or different aryl groups, of which at least one carries a COOR.sub.7 substituent, in which R.sub.7 represents hydrogen, an alkyl or aryl group with a maximum of 12 carbon atoms, and in which R.sub.1 and R.sub.2 can be one and the same aryl group, thus forming a cyclic compound.

Abstract: A process is disclosed for the preparation of 1,2-bis-phosphine oxides by reacting at least one of certain phosphine oxides with certain oxirane compounds in an aprotic solvent and in the presence of a basic compound.

Abstract: 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.

Abstract: A process for the hydroformylation of less reactive olefins with hydrogen and carbon monoxide in the presence of a Group VIII-metal hydroformylation catalyst which has been modified by a ligand of formula L(OR.sup.1) (OR.sup.2)(OR.sup.3), wherein L represents P or As and R.sup.1, R.sup.2 and R.sup.3 are similar or dissimilar aryl groups provided that at least one of R.sup.1, R.sup.2, R.sup.3 is a group ##STR1## wherein Q represents a group ##STR2## or a group ##STR3## wherein R.sup.4 is an optionally fluorine-substituted hydrocarbyl group, R.sup.5 is H or R.sup.4, R.sup.6 is H or an inert substituent on the metal and/or the para position of the ring, X is O or S and n is 0 or 1 and R.sup.7 represents a hydrogen atom or an inert substituent. Less reactive olefins such as limonene can be hydroformylated with very good results.

Abstract: Process for the hydroformylation of olefins with carbon monoxide and hydrogen in the presence of a ligand stabilized, platinum-containing catalytic system comprising at least one secondary phosphine oxide moiety.

Abstract: 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.

Abstract: 1,5-Dimethyl-1,5-cyclooctadiene and 1,4-dimethyl-4-vinyl-1-cyclohexene are prepared by contacting isoprene with a catalyst obtained by mixing a nickel compound, a reducing agent capable of reducing the nickel to zerovalent nickel, and a trihydrocarbyl phosphite, arsenite or antimonite wherein at least one of the three hydrocarbyl groups is a substituted hydrocarbyl group CF.sub.3 --(CF.sub.2).sub.n C(H)(R)--, in which n.ltoreq.O and R is an optionally substituted hydrocarbyl group. Only very small amounts of the undesired 1,6-dimethyl-1,5-cyclooctadiene are formed.

Abstract: 1,5-Dimethyl-1,5-cyclooctadiene and 1,4-dimethyl-4-vinyl-1-cyclohexene are prepared by contacting isoprene with a catalyst obtained by mixing a nickel compound, a reducing agent capable of reducing the nickel to zerovalent nickel, and a trihydrocarbyl phosphite, arsenite or antimonite wherein at least one of the three hydrocarbyl groups is a substituted hydrocarbyl group CF.sub.3 --(CF.sub.2).sub.n C(H)(R)--, in which n.gtoreq.0 and R is an optionally substituted hydrocarbyl group. Only very small amounts of the undesired 1,6-dimethyl-1,5-cyclooctadiene are formed.