Abstract:
ETHYLENE IS OLIGOMERIZED TO A MIXTURE OF OLEFINIC PRODUCTS OF HIGH LINEARITY IN THE PRESENCE OF A NICKEL CHELATE OF A BIDENTATE LINGAND HAVING A TERTIARY ORGANOPHOSPHORUS MOIETY AND A FUNCTIONAL GROUP SELECTED FROM HYDROXYMETHYL, MERCAPTOMETHYL, HYDROCARBOYL AND HYDROCARBYLOXYCARBONYL SUBSTITUTED ON A CARBON ATOM ATTACNED DIRECTLY TO THE PHOSPHORUS ATOM OF THE ORGANOPHOSPHOURS MOIETY.
Abstract:
Ethylene is oligomerized to linear, alpha-olefins by reacting ethylene in liquid phase solution in the presence of a catalyst composition produced by contacting in the presence of ethylene (1) a simple divalent nickel salt (2) a boron hydride reducing agent and (3) an o-dihydrocarbylphosphinobenzoic acid or alkali metal salt thereof.
Abstract:
1,127,965. Hydrocarbylene-his (monophosphabicyclo hydrocarbons); cobalt-containing complexes. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 24 Nov., 1966 [26 Nov., 1965], No. 52662/66. Heading C2C. [Also in Division B1] Novel hydrocarbylene - bis (monophosphabicyclo hydrocarbons) where the hydrocarbylene group may contain one or more functional groups as substituents and in which, in each bicyclic structure, the phosphorus atom, being linked to the hydrocarbylene group, is a member of a ring without being a bridge-head atom and the smallest phosphorus-containing ring consists of at least 5 atoms, are prepared by reacting a secondary phosphine, preferably a bicyclic heterocyclic secondary phosphine, with a polyolefinic compound containing at least two isolated ethylenic bonds in the presence of a free-radical-generating catalyst and in the absence of substantial amounts of oxygen. Specified catalysts are azonitriles, a dialkyl or diacyl peroxide, actinic radiation and high energy or ionizing radiation. Typical products may be represented by the formula where Q is hydrocarbylene, y, z, y 1 and z 1 each represent integers of 1 or more and y + z = 3 and y 1 + z 1 = 3, R is hydrogen or C 1-4 alkyl. Specified functional substituents are carbonyl, carboxyl, nitro, amino, hydroxy, cyano, sulphonyl and sulphoxyl. The compounds may also be prepared by reacting a diprimary hydrocarbylene phosphine with a cyclo-octadiene in the presence of a free radical-generating catalyst and in the substantial absence of oxygen. The novel compounds are used as phosphine ligands in complexes containing cobalt, e.g. cobalt carbonyl. Such complexes are used as catalysts for the production of alcohols and/or aldehydes by the reaction of olefins with CO and H 2 , and the catalysts may be prepared in situ, e.g. from cobalt octanoate. The hydroformylation of 1-dodecene is described.