A process can prepare an isocyanurate compound by hydrosilylation. The compound is a tris[3-(trialkoxysilyl)propyl] isocyanurate, a tris[3-(alkyldialkoxysilyl)propyl] isocyanurate, and/or a tris[3-(dialkylalkoxysilyl)propyl] isocyanurate. The process includes (A) preparing a mixture of at least one carboxylic acid, a platinum catalyst, and 1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione; (B) heating the mixture to a temperature in the range of 40 to 140 C.; (C) adding at least one H-silane among a hydrotrialkoxysilane, a hydroalkyldialkoxysilane, and a hydrodialkylalkoxysilane to the mixture; (D) adding at least one alcohol to the mixture prepared in step (C); and (E) isolating the isocyanurate compound.

A process can prepare an isocyanurate compound by hydrosilylation. The compound is a tris[3-(trialkoxysilyl)propyl] isocyanurate, a tris[3-(alkyldialkoxysilyl)propyl] isocyanurate, and/or a tris[3-(dialkylalkoxysilyl)propyl] isocyanurate, The process includes (A) preparing a mixture of at least one carboxylic acid, a platinum catalyst, and 1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione; (B) heating the mixture to a temperature in the range of 40 to 140 C.; (C) adding at least one H-silane among a hydrotrialkoxysilane, a hydroalkyldialkoxysilane, and a hydrodialkylalkoxysilane to the mixture; (D) adding at least one alcohol to the mixture prepared in step (C); and (E) isolating the isocyanurate compound.

Disclosed are a pincer-type ligand having a structurally rigid acridane structure and a metal complex consisting of the pincer-type ligand and a metal bound to each other, and exhibiting high reactivity and stability during a variety of bonding activation reactions. T-shaped complexes can be prepared from .sup.acriPNP(4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acrid in-10-ide), which is a pincer-type PNP ligand having an acridane structure, and metal complexes, which can be structurally rigid and thus exhibit excellent reactivity and stability based on minimized structural change thereof, can be prepared by introducing an acridane structure into the backbone thereof. The PNP ligand is structurally stable and has novel chemical properties, as compared to conventional similar ligands, and thus can be utilized in a wide range of catalytic reactions and material chemistry.

A method for preparing particles comprising a material suitable for catalysing oxygen reduction or hydrogen oxidation, the particles being grafted with grafts consisting of at least one specific polymer comprising at least one repeating fluorinated styrene unit bearing at least one proton-conducting group.

A long life catalyst is provided that is conveniently and inexpensively capable of being produced and that is highly active and has inhibited metal leakage. According to aspects of the present invention, a catalyst is provided that includes: a polymer including a plurality of first structural units and a plurality of second structural units; and metal acting as a catalytic center, wherein at least part of the metal is covered with the polymer, each of the plurality of first structural units has a first atom constituting a main chain of the polymer and a first substituent group bonded to the first atom, a second atom included in each of the plurality of second structural units is bonded to the first atom, and the second atom is different from the first atom, or at least one of all substituent groups on the second atom is different from the first substituent group.

The present invention relates to catalyst compositions comprising nanoparticles comprising one or more elements selected from a group 10 element, cocatalysts, catalyst promoters and organic molecules as organic stabilizing agents, in adequate porous supports. The invention also includes a particular mode of preparing the catalyst composition and the use of the catalyst in selective non-oxidative dehydrogenation of alkanes.

Provided is an ion exchanger which is composed of a polymer chain represented by general formula (1)

##STR00001##

(wherein R.sup.1 represents an alkyl group of 4 to 22 carbon atoms which may be substituted; or a benzyl group which may be substituted with an alkyl group of 1 to 6 carbon atoms which may be substituted, a halogen atom, an alkoxy group of 1 to 6 carbon atoms which may be substituted, an amino group which may be substituted, a cyano group, or a nitro group; R.sup.2 and R.sup.3 each independently represent an alkyl group of 1 to 4 carbon atoms; L represents a linker site; and Polymer represents a polymer chain).

The present invention relates to a catalyst composition including a phosphorous-based ligand, and a hydroformylation method using the catalyst composition. More particularly, the present invention relates to a catalyst composition, which includes two different kinds of monocoordinated phosphine ligands and a transition metal catalyst, and a hydroformylation method using the catalyst composition. In accordance with the present invention, a catalyst composition lowering a selection ratio of normal aldehyde to iso aldehyde (n/i ratio), which are generated during hydroformylation of an olefinic compound, and exhibiting superior catalytic activity and stability, and a method of hydroformylating an olefinic compound using the catalyst composition are provided.

An additive has been prepared for blending with gasoline that facilitates a cylinder resident reaction, in high compression internal combustion engines (ICEs), to produce an increase in engine's mechanical energy output. A method of increasing mechanical efficiency of an internal combustion engine (ICE) comprising blending an amount of additive with gasoline to perform hydrolysis of olefin hydrocarbons, represented by octene (C8) into petroleum gas hydrocarbons, represented by butane (C4), wherein the additive facilitates cylinder-resident reaction, aided by a low concentration of organometallic catalyst, to utilize the elements of the water combustion product, to hydrolyze olefin hydrocarbons such as octene, resident in the gasoline, into petroleum gas hydrocarbons such as butane, and to increase the ICE's efficiency of utilization of the energy of the fuel.

The present invention relates to a catalyst composition for hydroformylation and a hydroformylation method using the same, and more particularly to a catalyst composition for hydroformylation including a phosphoramidite ligand and a transition metal catalyst, and a hydroformylation method using the catalyst composition. In accordance with the present invention, provided are a catalyst composition for hydroformylation which increases productivity and provides superior catalytic activity and stability while lowering an n/i ratio in generated aldehyde upon hydroformylation of an olefinic compound, and a method of hydroformylating an olefinic compound using the catalyst composition. [Representative Figure ] FIG. 1