A method of using a metal organic framework (MOF) comprising a metal ion and an at least bidendate organic ligand to catalytically detoxify chemical warfare nerve agents including exposing the metal-organic-framework (MOF) to the chemical warfare nerve agent and catalytically decomposing the nerve agent with the MOF.

A metal complex represented by the following Formula (1): ##STR00001##
(wherein M represents palladium or platinum; L represents a ligand selected from carbon monoxide, an olefin compound, an amine compound, a phosphine compound, an N-heterocyclic carbene compound, a nitrile compound and an isocyanide compound; n represents an integer of 0 to 2 showing the number of the ligand; and each of R.sup.1 to R.sup.4 represents an organic group). The metal complex described above can be fixed on an inorganic oxide while maintaining a skeletal structure thereof to obtain a supported metal complex, which makes it possible to allow the supported metal complex to maintain the same catalytic activity as that of the original metal complex. Also, calcining the supported metal complex obtained in the manner described above makes it possible to obtain a supported metal catalyst improved in catalytic activity to a greater extent than conventional supported metal catalysts.

The invention relates to CH activated olefin metathesis catalyst compounds, the preparation of such compounds, and the use of such catalysts in the metathesis of olefins and olefin compounds, more particularly, the use of such catalysts in Z selective olefin metathesis reactions. In general, the catalyst compounds of the invention comprise a Group 8 metal (M), an alkylidene moiety (CR.sup.1R.sup.2), or more generally ((C).sub.mCR.sup.1R.sup.2), an anionic ligand (X.sup.1), two or three neutral ligands (L.sup.1, L.sup.2, and L.sup.3) and a 2-electron anionic donor bridging moiety (Q*) that forms a chelate ring structure in conjunction with L1 and M. Such catalysts generally correspond to the formula X.sup.1(L.sup.3).sub.kL.sup.2L.sup.1Q*M=(C).sub.mCR.sup.1R.sup.2, wherein X1 is any anionic ligand, L.sup.1, L.sup.2, and L.sup.3 are, independently, any neural electron donor ligand, k is 0 or 1, m is 0, 1, or 2, Q* is a 2-electron anionic donor bridging moiety linking L.sup.1 and M, M is a Group 8 transition metal, and R.sup.1 and R.sup.2 are, independently, hydrogen, hydrocarbyl, substituted hydrocarbyl, heteroatom-containing hydrocarbyl, substituted heteroatom-containing hydrocarbyl, or functional groups. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry.

The present invention is directed towards a catalyst which is obtainable by contacting in situ a ruthenium precursor and a phenol derivative. Furthermore, the present invention is directed towards the use of said catalyst in transfer hydrogenation reactions. In particular, the present invention is directed to a method for preparing menthone starting from isopulegol.

A process for the hydrosilylation of an unsaturated compound comprising reacting (a) a silyl hydride with (b) an unsaturated compound in the presence of (c) a platinum based hydrosilylation catalyst comprising a platinum-diene complex with chelating anions. The use of the present catalysts in the process provides silylated products in good yields and allows for using lower platinum loadings than conventional catalysts, reduced cycle times, and may reduce yellowing in the product.

An object of the present invention is to provide a method for producing (meth)acrylic-modified polybutadiene free from coloration and white turbidity without using a tin compound. The method for producing (meth)acrylic-modified polybutadiene of the present invention comprises reacting polybutadiene having a hydroxyl group at a terminal and a (meth)acrylic ester in the presence of an organoaluminum compound. As the organoaluminum compound, for example, a compound represented by formula (I) (wherein each of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 independently represents a linear or branched C1 to C30 alkyl group) is preferred. ##STR00001##

Provided is a method of decomposing a crosslinked rubber that includes: a first decomposition step of decomposing a crosslinked rubber containing a diene rubber, using a catalyst represented by the following general formula (1), (2), or (3), where Mis ruthenium, molybdenum, etc., X.sup.1, X.sup.2, L.sup.1, L.sup.2, and L.sup.3 each independently represent a ligand, R.sup.1, R.sup.2, and R.sup.3 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, etc. (these groups may be substituted by one or more alkyl groups, halogens, alkoxy groups, etc.), L.sup.1 and L.sup.2, R.sup.1 and R.sup.2, and L.sup.1 and R.sup.1 may respectively bond with each other to form rings; and a second decomposition step of pyrolyzing a decomposition product obtained by the first decomposition step under an inert gas atmosphere and in the absence of a catalyst at a temperature of 300 C. to 450 C.

##STR00001##

Provided is a method of decomposing a crosslinked rubber that includes: a first decomposition step of decomposing a crosslinked rubber containing a diene rubber, using a catalyst represented by the following general formula (1), (2), or (3), where M is ruthenium, molybdenum, etc., X.sup.1, X.sup.2, L.sup.1, L.sup.2, and L.sup.3 each independently represent a ligand, R.sup.1, R.sup.2, and R.sup.3 each independently represent hydrogen, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, etc. (these groups may be substituted by one or more alkyl groups, halogens, alkoxy groups, etc.), L.sup.1 and L.sup.2, R.sup.1 and R.sup.2, and L.sup.1 and R.sup.1 may respectively bond with each other to form rings; and a second decomposition step of pyrolyzing a decomposition product obtained by the first decomposition step under an inert gas atmosphere and in the absence of a catalyst at a temperature of 600 C. to 950 C.

##STR00001##

Disclosed are perfluorinated SABRE catalysts comprising a d-block element and a perfluorinated ligand, wherein the perfluorinated ligand is of Formula (I): [L.sub.m-(NHC)(YZ).sub.q] or a salt thereof. Also disclosed is a method of preparing a hyperpolarized substrate comprising a spin nucleus or nuclei using the perfluorinated SABRE catalysts, and isolating the resulting hyperpolarized substrate for administration to an animal. Further disclosed is a method of imaging a tissue of an animal suspected of having a disease or condition.

The present disclosure is directed to methods preparing ruthenium compounds, useful for use in metathesis reactions, the product compounds arising from such methods, and the use of such product compounds as catalysts in the metathesis of olefins. In particular, methods take advantage of the use of intermediates of the general formula (C) to obtain the CH metalated, sterically hindered ruthenium compounds of generally formula (B): Using the disclosed methods, the compounds of the general formula (B) are produced in higher yields, exhibit higher catalytic activity/selectivity, and give rise to more hindered catalysts than are accessible from methods previously known.

##STR00001##