Described is a method for generating conjugated dienes through a biological process. More specifically, the application describes a method for producing conjugated dienes (for example butadiene, isoprene or dimethylbutadiene) from light alkenols via enzymatic dehydration, in particular by making use of an alkenol dehydratase.

In which r11 is e. G., 4-(pyrrolidin-1-yl)piperidin-1-yl, n-methyl-3-(pyrrolidin-1-yl)propan-1-amino, n1,n1,n3-trimethylpropane-1,3-diamino, n,n-dimethylpiperidin-4-amino, 3-(pyrrolidin-1-ylmethyl)azetidin-1-yl, 3-(pyrrolidin-1-ylmethanon)azetidin-1-yl, or 3-(morpholin-1-ylmethyl)azetidin-1-yl; r13 is, e. G., phenyl optionally substituted with one or more substituents; and r12 and r14 are each independently ...

Disclosed is a method that reforms flare gas or other raw natural gas source, using air without steam, to directly produce dimethyl ether (dme), a direct diesel substitute. The method first reforms an air-natural gas mixture at ambient atmospheric pressures, and then compresses the resulting co-hydrogen-nitrogen gas mixture to 100-2,000 psi, and feeds it through a combined reactor which reacts ...

A pre-vaporization formulation pre-vaporization formulation for an e-vaping device, the pre-vaporization formulation including a vapor former including a combination of propylene glycol and glycerol, and an additive including at least one of capsicum, allyl isothiocyanate, piperine, isoeugenol, carvacrol, thymol, menthol, monomenthyl succinate, n-(2-hydroxyethyl)-2,3-dimethyl-2-isopropyl butanamide, horseradish oil, garlic extract, onion oil, black pepper, cayenne pepper, ginger oil, ...

This disclosure describes a cryopreservative composition and methods for storing cells. Generally, the cryopreservative composition includes a sugar component and a sugar alcohol component, and is effective for storing and recovering cells without requiring dimethyl sulfoxide (dmso).

A method for preparing an organic-inorganic hybrid porous insulation coating composition includes steps of: adding sepiolite nanoparticles that have been surface-treated with silane or dimethyl ammonium chloride to a thermal-resistant resin solution; and stirring the thermal-resistant resolution solution containing the sepiolite nanoparticles at 3600 rpm or more for 30 minutes or more. The thermal-resistant resin solution includes at least one thermal-resistant resin ...

The invention provides a hydrophilized polydiorganosiloxane vinylic crosslinker which comprises (1) a polydiorganosiloxane polymer chain comprising dimethylsiloxane units and hydrophilized siloxane unit having one methyl substituent and one monovalent c10-c50 organic substituent having two or three carboxy groups, wherein the molar ratio of the hydrophilized siloxane units to the dimethylsiloxane units is from about 0. 035 to about 0. 25, and (2) two terminal (meth)...

The invention provides a hydrophilized polydiorganosiloxane vinylic crosslinker which comprises (1) a polydiorganosiloxane polymer chain comprising dimethylsiloxane units and hydrophilized siloxane units each having one methyl substituent and one monovalent c4-c40 organic radical substituent having two to six hydroxyl groups, wherein the molar ratio of the hydrophilized siloxane units to the dimethylsiloxane units is from about 0. 035 to about 0. 15, and (2) two ...

The present invention relates to a process for the preparation of oxirane compounds of formula ii from keto compounds iii using dimethyl sulfide (ch3)2s and dimethylsulfate (ch3)2so4, forming the reagent iv, trimethylsulfonium methylsulfate [(ch3)3s+ch3so4−], in aqueous solution in the presence of potassium hydroxide (koh).

The present invention provides a method of forming paracyclyophane containing disulfide functional group. The paracyclophane is prepared by adding 3,3′-dithiodipropionic acid (dpdpa) and n-ethyl-n′-(3-(dimethylamino)propyl)carbodiimide (edc) into 4-aminomethyl [2,2] paracyclophane. The present invention further provides a chemical film and a method of forming the same. The chemical film contains poly-p-xylylene with disulfide functional group and ...

A hitherto unknown crystalline form of (−)-(1r,2r)-3-(3-dimethylamino-1-ethyl-2-methylpropyl)-phenol hydrochloride, pharmaceutical compositions containing the new crystalline form, methods of producing the new crystalline form, and a related method of use including treatment of, e. G., pain and/or urinary incontinence.

This invention relates to a method for preparing p-xylene and propylene from methanol and/or dimethyl ether. This method comprises coupling two reaction processes, an aromatization reaction of methanol and/or dimethyl ether and an alkylation reaction of ethylene with methanol and/or dimethyl ether. The method of this invention produces p-xylene and propylene with a high selectivity by returning ...

A method is disclosed for synthesizing molecular sieve material designated ssz-105 using n-methyl quinuclidinium cations or n,n′-dimethyl-1,4-diazabicyclo[2. 2. 2]octane dications as a structure directing agent. Ssz-105 is a disordered aluminosilicate molecular sieve comprising at least one intergrown phase of an eri framework type molecular sieve and an lev framework type molecular sieve.

A thermoelectric material is manufactured by a manufacturing process including annealing at an annealing temperature from 125° c. To 200° c. And for an annealing time from 5 minutes to 12 hours applied to a substance selected from the group consisting of conductive polymer, polystyrene sulfonate (pss), tosylate (tos), chloride and perchlorate and a substance as solvent selected from the group consisting ...

A well treatment fluid composition that includes a tetrakis(hydroxyorgano)phosphonium salt and 1,3-dimethylol-5,5-dimethylhydantoin. Methods for preparing a well treatment fluid composition and treating a subterranean formation are also presented.

(g) a dimethyl silicone.

A slurry solution for a chemical mechanical polishing (cmp) process includes a wetting agent, a stripper additive that comprises at least one of: n-methyl-2-pyrrolidone (nmp), dimethyl sulfoxide (dmso), sulfolane, and dimethylformamide (dmf), and an oxidizer additive comprising at least one of: hydrogen peroxide (h2o2), ammonium persulfate ((nh4)2s2o8), peroxymonosulfuric acid (h2so5), ozone (o3) in de-ionized water, ...

An inorganic particle-polysiloxane composite comprising inorganic particles having a polysiloxane containing sir2r3o2/2 and sir4r5r6o1/2 units grafted to their surface is prepared without mechanical treatment. The inorganic particles have an average particle size of 1-200 nm, the polysiloxane may be bonded to the inorganic particle surface via a siloxane coating layer containing sir1o3/2 units, and ...

A superhydrophobic appliance is an elastomeric material with a surface having a multiplicity of re-entrant features. The elastomeric material can be a polydimethylsiloxane network. The superhydrophobic appliance can be formed by infusing a portion of a polydimethylsiloxane polymeric precursor partially into the pores of a porous membrane, curing to the polymeric network, and separating the membrane from the appliance to ...

Intermediates used in the synthesis of eribulin and methods for preparing the intermediates are described. For example, a compound of formula iv and a method for preparing the compound are described, wherein r1 is a hydroxyl protecting group, preferably a (c1-10 alkyl group or aryl group)3silyl group, and more preferably tert-butyldiphenylsilyl (tbdps); and r2 is a hydroxyl protecting ...

A waste treatment process and system is described, which finds application in dechlorinating carbohydrates and/or hydrolyzing dimethyl formamide and/or dimethyl formamide in a waste stream. The process includes treating the waste stream with base at a ph of from 11 to 14, and at a temperature of from 200 to 330° f.