The present disclosure relates to a metal-organic framework modified using a compound having a hydroxyl group (OH), a catalyst for a hydrogenation reaction including the same, and a method of manufacturing the same. The catalyst according to the present disclosure has high activity to the hydrogenation reaction even at a low temperature of 30 to 40 C., thus making low-grade waste heat usable.

A method of alkylating or acylating an arene includes reacting the arene with an organic halide in the presence of an aprotic solvent and a catalyst of formula (I)
MR.sup.1.sub.mX.sub.n.Z(R.sup.2)(R.sup.3)(I)
wherein M is Al, Ga, or Fe; R.sup.1 is C.sub.1-C.sub.12 alkyl; m is 0 or 1; R.sup.2 and R.sup.3 are each independently unsubstituted or substituted C.sub.2-C.sub.12 alkyl; each occurrence of X is independently a halogen; n is 2 or 3; the sum of m and n is 3; and Z is S or O. When M is Al, then m is 1, n is 2, and R.sup.2 and R.sup.3 are each independently substituted with at least one electron-withdrawing group. When M is Ga or Fe, then m is 0 and n is 3.

The present invention relates to a double metal cyanide (DMC) complex catalyst with an improved catalytic activity useful for epoxide polymerization. It also relates to polyether polyols prepared by a polymerization reaction using said DMC catalyst.

Provided is an organic tin-free cationic electrodeposition coating composition which does not contain organic tin compound and can sustain a superior coating curability under currently used baking conditions, and to a catalyst for the composition. A catalyst for electrodeposition coating composition containing a bismuth compound (A), wherein: the bismuth compound is a compound having a ligand prepared from a -diketone represented by Chemical Formula (1) is provided.

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(wherein, a plurality of R.sup.1 are the same or different from each other and represent a hydrocarbon group, and a number of total carbon atoms in two R.sup.1 is 4 or larger)

A method of alkylating or acylating an arene includes reacting the arene with an organic halide in the presence of an aprotic solvent and a catalyst of formula (I)

MR.sup.1.sub.mX.sub.n.Z(R.sup.2)(R.sup.3)(I)

wherein M is Al, Ga, or Fe; R.sup.1 is C.sub.1-C.sub.12 alkyl; m is 0 or 1; R.sup.2 and R.sup.3 are each independently unsubstituted or substituted C.sub.2-C.sub.12 alkyl; each occurrence of X is independently a halogen; n is 2 or 3; the sum of m and n is 3; and Z is S or O. When M is Al, then m is 1, n is 2, and R.sup.2 and R.sup.3 are each independently substituted with at least one electron-withdrawing group. When M is Ga or Fe, then m is 0 and n is 3.

The present invention relates to a compound for use as catalyst in the production of polyisocyanate polyaddition products, to the production thereof and to the use thereof as catalyst, preferably as thermolatent catalyst, for production of polyisocyanate polyaddition products. The invention further relates to a formulation and to a process for producing polyisocyanate polyaddition products, each using the compound of the invention, and to a polyisocyanate polyaddition product obtained or obtainable by said process. The invention finally relates to a coating composition for coating a substrate, comprising or consisting of the polyisocyanate polyaddition product of the invention.

The present disclosure provides for a rhodium-catalyzed oxidative arene alkenylation from arenes and styrenes to prepare stilbene and stilbene derivatives. For example, the present disclosure provides for method of making arenes or substituted arenes, in particular stilbene and stilbene derivatives, from a reaction of an optionally substituted arene and/or optionally substituted styrene. The reaction includes a Rh catalyst or Rh pre-catalyst material and an oxidant, where the Rh catalyst or Rh catalyst formed Rh pre-catalyst material selectively functionalizes CH bond on the arene compound (e.g., benzene or substituted benzene).

A metal oxygen-containing complex has a transition metal element as central atom and an oxygen-containing heterocyclic organic compound containing a substituent as ligand. The ligand is a compound having a structure of formula (I).

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