Abstract: The present disclosure provides for processes and systems for the purification of alkyl sulfide product streams including dimethyl sulfide (DMS). In some aspects, the disclosure provides for the removal of carbon disulfide (CS2) from DMS via hydrolytic catalysis. In further embodiments, the disclosed catalytic processes are performed using mixed-metal catalyst systems such as cobalt-molybdenum (CoMo) and nickel-molybdenum (NiMo) catalyst systems.

Abstract: A process for the preparation of freeze-dried 2-[(3-aminopropyl)amino]ethanethiol including the following steps: a) the reaction of a solution of amifostine with a strong acid, to obtain a solution of 2-[(3-aminopropyl)amino]ethanethiol, and b) the freeze-drying of the solution of 2-[(3-aminopropyl)amino]ethanethiol, with or without addition of excipients.

Abstract: A hexafluorodimethylcarbinol terminated compound, method of making it, and a composition of matter are disclosed. The compound may have the formula (CF3)2C(OH)-L-M-R. The substructure L may be selected from an optionally substituted propenylene group (—CH2CH?CH—) and trimethylene group (—CH2CH2CH2—). The substructure M may be selected from a substituted or unsubstituted methylene chain, a substituted or unsubstituted oxyalkylene chain, and a silicon-containing chain or combination thereof. In one embodiment, M may be selected from —(CH2)n—, —(OCH2CH2)m—, and —(Si(CH3)2O)p—Si(CH3)2— (CH2)q—, wherein n is at least 1, e.g., n is up to 10, m can be at least 1, e.g., m is up to 10, p can be 0 and in one embodiment is from 1 to 10, and wherein q can be 1 and in one embodiment is from 1 to 12. The substructure R represents one of a halogen, —SH, —SZ, —S—S-M-L-C(CF3)2(OH), wherein Z represents a thiol protecting group.

Abstract: A polymeric composition that includes at least one polymer and an effective amount of a nanoparticulate component. The nanoparticulate component is at least one of inorganic functional nanoparticulate compounds and graphene in which the nanoparticulate component is associated with the polymer. The polymer disclosed herein can have electromagnetic activity. The resulting polymeric composition exhibit a measurable electrical conductivity (?) range of 10?14 to 4.7*106 (S/m) at 20° C. A polymeric precursor that includes at least one component selected from the group that includes isocyanates, polyisocyanates, MDI-terminated prepolymers and an effective amount of a nanoparticulate component. The nanoparticulate component is at least one of inorganic functional nanoparticulate component being at least one of inorganic functional nanoparticulate compounds and graphene that is associated with the prepolymer.

Abstract: The present invention describes a liquid-liquid extraction column with perforated plates and downpipes, having a majority of so-called “open” plates and a minority of so-called “closed” plates, the two types of plates differing in the degree of perforation. Application of the said column to the treatment of liquid-liquid systems with time-variable coalescence.

Abstract: A lithium ion secondary battery including a compound containing at least one thiol group (—SH) in a molecule in a unit cell of the battery is provided. By including the compound containing thiol group (—SH) having good reactivity with copper or copper ions, the formation of dendrite through the reduction of copper ions present in the inner portion of the battery or produced during operating the battery at the surface of an anode may be prevented. The internal short between two electrodes due to the dendrite may be also prevented.

Abstract: Methods, systems, devices and materials are disclosed for implementing a bioaffinity sensor having a self-assembled monolayer interface for detection of a target molecule. In one aspect, a sensor device for detecting a target molecule includes a surface capable of attaching a thiol and a molecular monolayer formed on the surface that includes a molecular capture probe having a thiol region, a linear alkanethiol molecule having one thiol region, and a linear alkanedithiol molecule having two thiol regions, in which the molecular capture probe includes a region for receiving a target substance having a complimentary region that couples with the region of the molecular capture probe to generate a detectable signal.

Abstract: An efficient and highly Markovnikov selective organoactinide-, organolanthanide-, and organozirconium-catalyzed addition of aryl, benzyl, and aliphatic thiols to terminal alkynes is described. The corresponding vinyl sulfides are produced with little or no side-products.

Abstract: The present invention provides modified multifunctional thiol-ene monomers wherein one or more thiols are reacted with a Michael addition reactive double bond compound. The present invention further discloses photocurable thiol-ene formulations comprising thiol-ene monomers including the modified multifunctional thiols. The present invention further discloses photocurable thiol-ene formulations comprising thiol-ene monomers and Michael addition reactive double bond molecules and a Michael catalyst. The formulations of the present invention can be photocured to make films or coatings. In a further disclosure, the formulations, including those comprised of unmodified multifunctional thiols and multifunctional enes, are photocured to form films applied to non-flexible or flexible polymer or non-polymer substrates suitable for food packaging, electronic products, optical products and other applications and free-standing films.

Abstract: The invention describes a method and product for chelating micronutrients when used to provide the micronutrients to a plant, which comprises applying to an area of the plant or soil/substrate surrounding the plant an effective amount of a plant fertiliser composition comprising a chelating polymer having the general formula (I), capable of forming coordinate bonds with the micronutrients, transporting the micronutrients across a membrane of the plant and releasing the micronutrients for use by the plant.

Abstract: To provide a resist polymer comprising, as a structural unit, an acid-decomposable unit having a structure represented by formula (1) or (2) which exhibits a small line edge roughness and produces little defects in DUV excimer laser lithography or the like.

Abstract: The present invention relates to a hydrogenation catalyst, particularly useful for the hydrogenation of carbon disulphide (CS2) to form methyl mercaptan (CH3SH), and to a preparation method thereof. The present invention also relates to a method for continuously preparing methyl mercaptan by the catalytic hydrogenation of carbon disulphide, with a carbon disulphide conversion rate of 100%, and a methyl mercaptan selectivity of 100%.

Abstract: The present invention relates to a process for continuously preparing methyl mercaptan from hydrogen sulphide and methanol in a direct connection with the preparation of hydrogen sulphide.

Abstract: The invention relates to a process for preparing an enantiomerically and/or diastereomerically enriched ester or thioester having at least two adjacent chiral centres, wherein a mixture of stereoisomers of a secondary alcohol or thiol having a structure comprising a first chiral center forming a secondary alcohol or secondary thiol moiety in the beta position relative to a second chiral center having one hydrogen substituent, is reacted with an acyl donor in the presence of an epimerisation catalyst and a stereoselective acylation catalyst.

Abstract: This invention is related to a preparation method of a supported catalyst Mo—O—K-MexOy for the synthesis of methanethiol from H2S-containing syngas. The catalyst comprises of an active component of Mo—O—K-based species, an active promoter and a support denoted as metal (or metals)-carrier. The support is prepared by electroless plating method in such a way that the metal or metals chosen are plated onto the surface of the carrier. Transition metal, especially Fe, Co or Ni are selected to be the plating metal, while SiO2, Al2O3 or TiO2 are selected to be carrier. The catalyst thus prepared is found to be efficient for the synthesis of methanethiol from H2S-containing syngasor carbon oxides/hydrogen mixtures, especially regarding a minor formation of the by-product CO2.

Abstract: A method is described to prepare a Mo containing supported catalyst comprising TeO2 as active promoter and a process for preparing methanethiol in the presence of said catalyst.

Abstract: The present invention relates to a continuous method for functionalizing a carbon nanotube, and more specifically, to a continuous method for functionalizing a carbon nanotube by feeding functional compounds having one or more functional group into a functionalizing reactor into which a carbon nanotube mixture including oxidizer is fed under a pressure of 50 to 400 atm and a temperature of 100 to 600° C. to a subcritical water or supercritical water condition of a pressure of 50 to 40 atm by using a continuously functionalizing apparatus to obtain the functionalized products, such that the functional group of the functional compound can be easily introduced to the carbon nanotube, thereby increasing the functionalized effect of the carbon nanotube and increasing the dispersibility accordingly.

Abstract: Provided is a process for continuously preparing methyl mercaptan by reacting a reactant mixture comprising solid, liquid and/or gaseous carbon- and/or hydrogen-containing compounds with air or oxygen, and/or water and sulfur.

Abstract: The process for preparing a mercaptan from an olefin and hydrogen sulphide is carried out in the presence of hydrogen and a catalyst composition comprising a strong acid, such as a heteropolyacid, and at least one metal belonging to group VIII of the Periodic Table.

Abstract: A process for selectively making 2-thiols from alpha olefins is described. The process includes contacting a linear or branched alpha olefin having with H2S in the presence of a catalyst and recovering the 2-thiol from a product mixture. The catalyst includes a support and at least one metal selected from Group IIIA-VIIIA and the branched olefin is branched at the 3-position or higher with respect to the olefin double bond. Compositions wherein the 2-thiols are substantially free of 1-thiol and 3-thiol isomers are also described.

Abstract: The present invention attaches a molecule that contains a hydroxyl group (OH) attached to a carbon chain which is attached to a coordinating atom or atoms, the acidity of which is greater than that of silica (i.e., pKA <10). The condensation is achieved by mixing silica gel, appropriate amount of ligand, and a drop of conc. sulfuric acid in toluene in a flask attached to a Dean-Stark tube. Heating of the mixture is continued until the amount of water, obtained by azeotropic distillation and condensation, reaches a constant value. Toluene is filtered off, and recycled. The supported ligand is dried under reduced pressure to remove residual toluene. The composite (ligand attached to silica) can then be used by batch or column method to remove heavy metal ions from aqueous solution.

Abstract: A method of thioacetate deprotection by providing a compound of the formula R1—S—CO—R2, and reacting the compound with a quaternary ammonium cyanide salt in the presence of a protic solvent in an inert atmosphere to convert the compound to a product of the formula R1—SH. R1 is an organic group in which the bonding to sulfur is through a saturated carbon, and R2 is an aliphatic group.

Abstract: The present invention relates to a process for the reduction of aliphatic, aromatic or heterocyclic organic compounds by means of hydrides and/or derivatives thereof.

Abstract: Carbon disulfide and hydrogen are reacted in the presence of a catalyst to form methyl mercaptans. The catalyst may be V2O5, Re2O7, or MnO supported on a substrate of CeO2, ZrO2, TiO2, Nb2O5, Al2O3, SiO2, Ta2O5, SnO2, or mixtures thereof High conversions of carbon disulfide and high selectivities to methanethiol are obtained by the present invention.

Abstract: The present invention includes 16-HETE analogs which are agonists and antagonists of 16-HETE. The compositions may be formulated in pharmaceutically acceptable formulations. The invention also includes methods and products for inhibiting neutrophil adhesion and neutrophil aggregation using the 16-HETE agonists. One method of the invention involves the administration of a 16-HETE agonist in combination with a thrombolytic agent to a patient suffering from thromboembolic stroke.

Abstract: A method wherein a gas stream containing carbon oxide and hydrogen sulfide is first passed in contact with a catalyst comprising a supported metal oxide of a metal selected from the group consisting of vanadium (V), niobium (Nb), molybdenum (Mo), chromium (Cr), rhenium (Re), tungsten (W), manganese (Mn), titanium (Ti), zirconium (Zr) and tantalum (Ta) and mixtures thereof to convert said carbon oxide and hydrogen sulfide to methyl mercaptans, (primarily methanethiol (CH3SH) and a small amount of dimethyl sulfide (CH3SCH3)), and the gas stream containing the methyl mercaptans are passed in contact with a catalyst comprising a supported metal oxide or a bulk metal oxide in the presence of an oxidizing agent and for a time sufficient to convert at least a portion of the methyl mercaptan to formaldehyde (CH2O), and sulfur dioxide (SO2).

Abstract: Presulfurizing process and presulfurization promoter for a desulfurization catalyst to be used in a hydrodesulfurization unit of petroleum refinery of high molecular hydrocarbons, in which fresh metal oxide in said desulfurization catalyst is sulfurized with hydrogen sulfide produced from sulfur-containing compounds in a feed stream. In the invention, a compound having mercapto alkylthio group: HS—CmH2m—S— (in which “m” is an integer of 2 to 4) is added as promoter at a proportion of 10 ppm to 0.5% by weight and presulfurization is promoted at 180 to 260° C.

Abstract: Disclosed is a method of making a mercaptan by reacting hydrogen sulfide with an olefin in the presence of a heterogeneous acidic catalyst. The catalyst can be made by calcining a mixture of a hydroxide, such as Zr(OH).sub.4 or Ti(OH).sub.4, with an acidic site donor, such as H.sub.2 SO.sub.4, (NH.sub.4).sub.2 SO.sub.4, or WO.sub.3.

Abstract: A method for the preparation of hydroxythiol compounds by reacting a hydroxyl-protected halide compound having the structure:X--R--OPgwith magnesium in a Grignard-suitable solvent to form a hydroxyl-protected magnesium halide compound, wherein R is selected from substituted or unsubstituted aliphatic radicals, substituted or unsubstituted cyclic aliphatic radicals, substituted or unsubstituted aromatic radicals, substituted or unsubstituted araliphatic radicals and substituted or unsubstituted heterocyclic radicals; Pg is a protecting group; and X is selected from the group consisting of F, Cl, Br and I; then reacting said hydroxyl-protected magnesium halide compound with sulfur in the Grignard-suitable solvent to form a hydroxyl-protected thiomagnesium halide compound; and hydrolyzing the protected hydroxyl group to form a hydroxythiomagnesium halide compound and converting the thiomagnesium halide to a thiol; wherein the protecting group is selected so that species formed by the de-protection of the protect

Abstract: A method wherein a gas stream containing a methyl mercaptan is passed in contact with a catalyst comprising a supported metal oxide or a bulk metal oxide in the presence of an oxidizing agent and for a time sufficient to convert at least a portion of the methyl mercaptan to formaldehyde (CH.sub.2 O) and sulfur dioxide (SO.sub.

Abstract: A process for the preparation of a thiol comprising reacting hydrogen with a thiocyanate or disulfide wherein the reaction with thiocyanate is conducted in the presence of a catalyst comprising a Group VIII metal or a mixture thereof; and the reaction with thiocyanate or with disulfide is conducted in the presence of a catalyst comprising a Group VIII metal or mixture thereof in the presence of a modifier metal selected from a group consisting of Group IB, Group IIB, Group IIIA, Group IVA, Group VA and Group VIA metal or mixture thereof, said catalyst being on a porous insoluble support.

Abstract: A process for the preparation of organic compounds or polymers containing one or more sulphur atoms and including one or more double bonds in a hydrocarbon chain is described. An acyclic sulphur-containing olefin or an unsaturated sulphur-containing cyclic hydrocarbon undergoes a self metathesis reaction or a cross metathesis reaction with a non-sulphur-containing acyclic olefin or a non-sulphur-containing unsaturated cyclic hydrocarbon to produce novel olefins, novel dienes, and/or olefinic polymers containing one or more sulphur atoms.

Abstract: A process of making certain compounds using a phase transfer catalyst that permits the recovery and recycle of the phase transfer catalyst.

Abstract: The invention relates to the manufacture of methyl mercaptan by catalytic hydrogenation of dimethyl disulphide on a catalyst based on sulphide(s) of at least one transition metal.The selectivity with respect to methyl mercaptan is considerably improved by working in the presence of water and/or hydrogen sulphide.

Abstract: A mercapto compound represented by the following formula (1): ##STR1## is obtained by reacting, in the presence of a mineral acid, thiourea with a compound represented by the following formula (2): ##STR2## wherein X means a hydroxyl group or a chlorine or bromine atom, and then adding a base to alkalinize the reaction mixture so that the reaction product is hydrolyzed.The mercapto compound represented by the formula (1) can be reacted with at least one cyanate compound selected from the group consisting of polyisocyanate compounds, polyisothiocyanate compounds and isocyanate-group-containing isothiocyanate compounds to form a sulfur- containing urethane resin. A lens made of the resin is colorless and transparent, has high refractive index and low dispersion characteristics, and is excellent especially in heat resistance.

Abstract: The metathesis of functionalized and unfunctionalized acyclic olefins using catalyst compositions containing iridium and silver in a molar ration of 3 to 1.

Abstract: A process for removing sulfur from an organic sulfide containing three or more chemically bound sulfur atoms is disclosed wherein said sulfide is contacted with a defined catalyst at elevated temperature to increase the disproportionation rate and the corresponding sulfide of lower sulfur rank is continuously removed from the reaction zone.

Abstract: A mercapto compound represented by the following formula (1): ##STR1## is obtained by reacting, in the presence of a mineral acid, thiourea with a compound represented by the following formula (2): wherein X means a hydroxyl group or a chlorine or bromine atom, and then adding a base to alkalinize the reaction mixture so that the reaction product is hydrolyzed.The mercapto compound represented by the formula (1) can be reacted with at least one cyanate compound selected from the group consisting of polyisocyanate compounds, polyisothiocyanate compounds and isocyanate-group-containing isothiocyanate compounds to form a sulfur-containing urethane resin lens made of the resin is colorless and transparent, has high refractive index and low dispersion characteristics, and is excellent especially in heat resistance.

Abstract: The subject of the present invention is compounds which correspond to the following general formula: ##STR1## in which R.sub.1 and R.sub.3 independently of one another represent H, an alkyl, alkenyl, cycloalkyl, aryl, arylalkyl or an alkylaryl group, a heterocycle, or groups which are unsubstituted or substituted, in particular by one or more hydroxyl or alkoxy groups or halogen;n represents an integer from 1 to 5;i in each case takes values from 1 to n for the n successive ##STR2## links; R.sub.2, R.sub.4.sup.i and R.sub.5.sup.i independently of one another represent H, an alkyl, alkenyl, aryl, alkoxy, hydroxyalkyl, alkoxyalkyl, amido, acyl or carboxyalkyl group, or a salt, or an alkyl ester of the latter; or R.sub.4.sup.i and R.sub.5.sup.i together form an oxo group ##STR3## R.sub.6 and R.sub.7 represent H, or R.sub.6 and R.sub.7 together form an oxo group ##STR4## x represents a 5- or 6-membered heterocycle which contains at least one nitrogen atom, or, in the event that ##STR5## where R.sub.8 and R.sub.

Abstract: Fluorescence properties of the product of the reaction of the 2-naphthalenethiolate ion and 2-chloroethylethylsulfide or bis(2-chloroethyl)sulfide are described. The fluorescence of the latter reaction is used as the basis of a new detection method for 2-chloroethylethylsulfide. The detection method is capable of detecting 2-chloroethylethylsulfide at levels down to 0.2 micrograms per milliliter.

Abstract: This invention provides oxygen or sulfur containing compounds possessing fruity, floral, or woody odors. These compounds may be used to fragrance or flavor a variety of consumer products such as tobacco products, foodstuffs, beverages, gums, mouthwashes, toothpastes, cosmetics, pharmaceutical preparations, and medicinal products. The disclosure also provides a process for the preparation of these compounds.

Abstract: Organic sulfur compounds, such as sulfonic acids, sulfonyl halides, sulfonates, sulfonamides, sulfonic acid anhydrides, sulfones, sulfoxides and/or disulfanes, are reduced by a method in which the sulfur compound in the liquid or gas phase is reacted with a hydrocarbon in the presence of carbon at from 100.degree. to 500.degree. C.

Abstract: There is provided a process for converting methane to higher molecular weight hydrocarbons. In a first step, methane is contacted with elemental sulfur under conditions sufficient to produce carbon disulfide. Carbon disulfide from this step is then contacted with methane and hydrogen under conditions sufficient to convert methane and to produce CH.sub.3 SH. This CH.sub.3 SH is then contacted with a sufficient catalyst, such as a zeolite, especially ZSM-5, under conditions sufficient to produce hydrocarbons having two or more carbon atoms.

Abstract: Compounds of the formula Ia ##STR1## in which X and R.sup.1 to R.sup.6 are as defined in the claims, are obtainable by reacting monochlorosilanes of the formula II ##STR2## with tetrasubstituted ethylenes of the formula III ##STR3## X as Cl and Br can be replaced by ester groups of inorganic and organic acids. The compounds of the formula I and those with other ester groups are suitable especially as a protective-group reagent for hydroxyl, mercapto, carboxyl, amino and amide groups.

Abstract: A process for the preparation of alkylthioalkanoate salts by reaction of an alkali metal alkylmercaptide with a lactone in the presence of an aprotic polar organic solvent. Preferably, the alkali metal mercaptide is prepared by reaction of an alkylmercaptan and an alkali metal phenate.

Abstract: A sulfonic acid is reduced to a thiol by heating the acid under carbon monoxide pressure in the presence of a rhodium carbonyl catalyst.

Abstract: The invention is a process for the preparation of a N- or S-1,2-ethylenically unsaturated organic compound which comprises(a) contacting a N- or S-silylated organic compound with an aldehyde, wherein the aldehyde has a hydrogen atom bonded to the carbon adjacent to the carbonyl moiety, at elevated temperatures under conditions such that a N- or S-1-siloxyalkyl-substituted organic compound is prepared; and(b) pyrolyzing the N- or S-1-siloxyalkyl-substituted organic compound under conditions such that the siloxy moiety is elminated to prepare a N- or S-1,2-ethylenically unsaturated compound.

Abstract: Ammonium dialkylaminoalkyl (thiocarbonyldithio) alkanoates, alkali metal dialkylaminoalkyl (thiocarbonyldithio) alkanoates, their use as flotation agents, and a process for the production of these novel compositions are disclosed. N,N-dialkylaminoalkyl mercaptoalkanoate, its use as an intermediate in the production of the novel ammonium dialkylaminoalkyl (thiocarbonyldithio) alkanoates and alkali metal dialkylaminoalkyl (thiocarbonyldithio) alkanoates, and a process for the production of this novel composition are also disclosed.

Abstract: An improved process is provided for forming ketones from the corresponding olefins by vapor phase oxidation of the olefin in the presence of molecular oxygen and water vapor employing a heterogeneous catalyst comprising rhenium compounds and complexes, optionally containing at least one metal compound or complex selected from the group consisting of Group VIB metals and Group VIII noble metals, and mixtures thereof. It has been surprisingly found that these catalysts effect the formation of ketones in high selectivities with minimal selectivities to the undesirable carbon dioxide and carbon monoxide by-products.

Abstract: An improved process is provided for forming ketones from the corresponding olefins by vapor phase oxidation of the olefin in the presence of water vapor, and optionally in the additional presence of molecular oxygen employing a heterogeneous catalyst comprising at least one member selected from the group consisting of Ce, Nd and La and compounds and complexes thereof, optionally containing at least one metal compound or complex selected from the group consisting of Group VIB metals and Group VIII noble metals, and mixtures thereof. It has been surprisingly found that these catalysts effect the formation of ketones in high selectivities with minimal selectivities to the undesirable carbon dioxide and carbon monoxide by-products.