96 results about "Sulfonyl halide" patented technology

An organically complexed nanocatalyst composition is applied to or mixed with coal prior to or upon introducing the coal into a coal burner in order to catalyze the removal of coal nitrogen from the coal and its conversion into nitrogen gas prior to combustion of the coal. This leads to reduced NOx production during coal combustion. The nanocatalyst compositions include a nanoparticle catalyst that is made using a dispersing agent. The dispersing agent includes at least one functional group such as a hydroxyl, a carboxyl, a carbonyl, an amine, an amide, a nitrile, a nitrogen having a free lone pair of electrons, an amino acid, a thiol, a sulfonic acid, a sulfonyl halide, and an. acyl halide. The dispersing agent forms stable, dispersed, nano-sized catalyst particles. The catalyst composition can be formed as a stable suspension to facilitate storage, transportation and application of the catalyst nanoparticles to a coal material. The catalyst composition can be applied before or after pulverizing the coal material or it may be injected directly into the coal burner together with pulverized coal.

Disclosed is an electrolyte comprising a compound having both a sulfonate group and a cyclic carbonate group. The electrolyte forms a more stable and dense SEI layer on the surface of an anode, and thus improves the capacity maintenance characteristics and lifespan characteristics of a battery. Also, disclosed is a compound represented by the following Formula 1, and a method for preparing the same by reacting 4-(hydroxyalkyl)-1,3-dioxolan-2-one with a sulfonyl halide compound:

There is described a polysiloxane having the structure:

wherein R₁, R₂, and R₃ are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical, R₄ is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen, R₅ is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group, R₆ is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group, x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50. The polysiloxane is used to make various copolymers and polymer blends. A variety of articles can be made using the polysiloxane described as a polymer blend or copolymer.

A catalyst manufacturing process includes heat treating an intermediate catalyst composition that includes catalyst nanoparticles having catalyst atoms in a non-zero oxidation state bonded to a dispersing/anchoring agent. The catalyst nanoparticles are formed using a dispersing agent having at least one functional group selected from the group of a hydroxyl, a carboxyl, a carbonyl, an amide, an amine, a thiol, a sulfonic acid, sulfonyl halide, an acyl halide, an organometallic complex, and combinations of these. The dispersing agent can be used to form single- or multicomponent supported nanocatalysts. The dispersing agent also acts as an anchoring agent to firmly bond the nanocatalyst to a support. Performing the heat treating process in an inert or oxidative environment to maintain the catalyst atoms in a non-zero oxidation helps maintains a stronger bonding interaction between the dispersing agent and the catalyst atoms. This, in turn, increases the dispersion and/or distribution of catalyst components throughout the supported catalyst.

The invention provides novel acid generators which are unproblematic in combustibility and accumulation inside the human body and can generate acids having high acidities and high boiling points and exhibiting properly short diffusion lengths in resist coating films and which permit the formation of resist patterns excellent smoothness with little dependence on the denseness of a mask pattern; sulfonic acids generated from the acid generators; sulfonyl halides useful as raw material in the synthesis of the acid generators; and radiation-sensitive resin compositions containing the acid generators. The acid generators have structures represented by the general formula (I),

wherein R¹ is a monovalent substituent such as alkoxycarbonyl, alkylsulfonyl, or alkoxysulfonyl, R² to R⁴ are each hydrogen or alkyl; k is an integer of 0 or above; and n is an integer of 0 to 5. Among the radiation-sensitive resin compositions, a positive one contains a resin having acid-dissociable groups in addition to the above acid generator, while a negative one contains an alkali-soluble resin and a crosslinking agent in addition to the acid generator.

A method of forming a crosslinked polyphenol, the method comprising: reacting a bio-based phenolic compound comprising at least one phenolic hydroxyl group, with a crosslinking agent comprising at least two functional groups reactive with the phenolic hydroxyl group, wherein the at least two functional groups are each independently a halogen group, acid halide group, sulfonyl halide group, glycidyl group, anhydride group, or a combination comprising at least one of the foregoing, to provide the crosslinked polyphenol.

The embodiment of the invention provides a solid flame retardant polymer. The solid flame retardant polymer includes a repetitive unit containing a cyclotriphosphazene structure, the repetitive unit is formed by graft polymerization of monomers containing the cyclotriphosphazene structure, and the general formula is shown as formula (I) or formula (II), X is selected from alkylidene, alkylidene halide, alkyleneoxy, alkyleneoxy halide, alkenylene, alkenylene halide, alkenyleneoxy, alkenyleneoxy halide, arylene, arylene halide, aryleneoxy, aryleneoxy halide, substituted phosphite, substituted imido or substituted sulfonylimido; and Y is selected from oxygen, sulfur, alkylene, alkylene halides, alkylene halides, arylene halides, arylene halides, arylene halides, arylene halides, arylene halides, sulfonyl halides or sulfonyl imides; Y is selected from oxygen, sulfur, alkylidene, alkylidene halide, alkyleneoxy, alkyleneoxy halide, alkenylene, alkenylene halide, alkenyleneoxy, alkenyleneoxyhalide, arylene, arylene halide, aryleneoxy, aryleneoxy halide, substituted phosphite, substituted imido or substituted sulfonylimido. The invention also provides a lithium secondary battery electrodeslice, a diaphragm and a lithium secondary battery.

The invention relates to a preparation method of isothiocyanate, which comprises the main step that in the presence of elemental sulfur and a catalyst, replaced formamide reacts with aryl sulfonyl halide at the temperature of 30 to 100 DEG C to obtain a target compound. The invention avoids using (thio) phosgene, derivatives (such as triphosgene) thereof and carbon disulfide, is operated safely and is environment-friendly. In addition, the synthetic route of the preparation method is simple (only one step of reaction), the preparation condition is mild, and with the method, the scale commercial preparation of the isothiocyanate is easy.

The present invention provides processes for the preparation of arylalkylsulfonyl halides and heteroarylalkylsufonyl halides of Formula I: Ar—R—SO₂—X, that are useful as intermediates in the preparation of pharmaceuticals.

A new class of polysaccharides containing carboxylic groups selectively substituted with halogens on the carbon atom on position 6 of the glicopyranosidic residue and the procedure to obtain these derivatives is therein described. The procedure entails the halogenation of carboxylated polysaccharides with alkyl aryl sulfonyl-halides in organic solvent. The products of this invention can be used as substrates in synthesis where the reactive site is the carbon that binds the halogen. Moreover, they can be used in the medical-diagnostic field.

The present invention provides an improved process for the preparation of zonisamide or a derivative thereof comprising (a) reacting 1,2-benzisoxazole-3-methane-sulfonic acid with a halogenating agent in a first organic solvent to provide benzisoxazole methane sulfonyl halide; and, (b) reacting benzisoxazole methane sulfonyl halide with an amine in a second organic solvent to form zonisamide or a derivative thereof.

Described is a process to prepare fluoropolymer organic-liquid dispersions containing a homogeneous mixture of reacted and unreacted sulfonyl halide groups. The dispersions are useful in the preparation of crosslinked membranes.

The invention provides a method for preparing 7-amino-3-nor-3-cephalo-4-carboxylic acid (7-ANCA for short). In the method, 7-phenylacetyl amide-3-hydroxy-3-cephalo-4-carboxylic acid-para-nitrobenzyl ester is taken as a raw material, and the method comprises the following steps of: firstly, reducing a double bond between a 3 position and a 4 position of a parent nucleus by using metal borohydride; secondly, esterifying a 3-position hydroxyl group by using sulfonyl halide; thirdly, removing 3-position methyl sulfonate group by using alkali to restore the double bond between the 3 position and the 4 position; and finally, removing a protective group on a 4-position carboxyl group of the parent nucleus by a catalytic hydrogenation method, and removing a protective group on 7-position amino group of the parent nucleus by an enzymatic method to obtain the 7-ANCA. In the method, the integral process is simple and practicable, the quality of the product is improved, the production cost is reduced, and environmental pollution is reduced.

The invention discloses an ethylene-alpha olefin copolymer and a preparation method thereof. The method comprises the following step of: enabling ethylene and alpha olefin to be in contact with a catalyst under the condition of olefin solution polymerization in the presence of a solvent and a gel inhibitor to obtain the ethylene-alpha olefin copolymer, wherein the catalyst contains an organic aluminum and vanadium compound, and the gel inhibitor is selected from one or more of 1,1,2,3,3,3-hexachloro-1-propene, hexachlorocyclopentadiene, aryl sulfonyl halide, halogenated fatty acid ester with at least two halogen atoms and aryl halide with at least three halogen atoms. By using the method provided by the invention, gel generated in the copolymerization process can be reduced.

The invention relates to a hydroxylamine synthesis method. The hydroxylamine synthesis method comprises the following steps: (A) enabling alcohol to react with alkyl sulfonyl halide in the presence of an acid-binding agent to obtain sulphonate; (B) enabling the obtained sulphonate in the step (A) to react with N-hydroxycyclodiimide in the presence of alkali to generate alkylate of the N-hydroxycyclodiimide; and (C) enabling the alkylate obtained in the step (B) to react with an aminolysis reagent or a hydrazinolysis reagent to obtain the hydroxylamine. The method is high in yield and suitable for large-scale industrial hydroxylamine synthesis.