CAS: 615-59-8; 1,4-Dibromo-2-Methylbenzene

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CAS号583-75-5 4-溴-2-甲基苯胺 | CAS号591-17-3 3-溴甲苯 | CAS号120-66-1 乙酰邻甲苯胺 | CAS号537-92-8 N-乙酰基-3-甲苯胺 | CAS号6933-10-4 4-溴-3-甲基苯胺 | CAS号95-46-5 2-溴甲苯 | CAS号7726-95-6 溴素 | CAS号7553-56-2 碘 | CAS号147034-01-3 2,5-二溴苄醇 | CAS号57381-43-8 2,5-二溴苯甲酸甲酯 | CAS号55984-93-5 2,5-二氰基甲苯 | CAS号68837-59-2 4-溴-2-甲基苯甲酸 | CAS号7697-28-1 4-溴-3-甲基苯甲酸 | CAS号5156-01-4 2-甲基-1,4-苯二甲酸 | CAS号74553-29-0 2,5-二溴苯甲醛 | CAS号610-71-9 2,5-二溴苯甲酸 | CAS号6933-10-4 4-溴-3-甲基苯胺 | CAS号33776-38-4 2'-methyl-[1,1'...

2-甲基-4-溴苯胺置于copper(I) Bromide Sodium Nitrite体系中,用 Aqueous Hbr,水,氢溴酸 作为反应溶剂,以36.1 G (58%)的收率获得产物2,5-二溴甲苯
参考文献:Heteroatom Bridged Metallocene Compounds For Olefin Polymerization
标题:Heteroatom Bridged Metallocene Compounds For Olefin Polymerization
摘要:本发明涉及一种过渡金属化合物,其表示为以下公式:其中m是3,4,5或6族过渡金属原子,或镧系金属原子,或锕系金属原子;e是:1)与y通过茚环的四,五,六或七位置结合的取代或未取代的茚基配体,或2)与y通过杂环茚环的四,五或六位置结合的取代或未取代的杂环茚基配体,前提是结合位置与环杂原子的位置不同,或3)与y通过芴环的一,二,三,四,五,六,七或八位置结合的取代或未取代的芴基配体,或4)与y通过杂芴环的一,二,三,四,五或六位置结合的取代或未取代的杂芴基配体,前提是结合位置与环杂原子的位置不同;a是取代或未取代的环戊二烯基配体,取代或未取代的杂环戊二烯基配体,取代或未取代的茚基配体,取代或未取代的杂环茚基配体,取代或未取代的芴基配体,取代或未取代的杂芴基配体,或其他单阴离子配体;y是通过杂原子与e和a结合的15族或16族桥接杂原子取代基;x是独立的一价阴离子配体,或两个x结合并与金属原子结合形成金属环,或两个x结合形成螯合配体,二烯基配体或烷基亚基配体.本发明还涉及包含上述过渡金属化合物,活化剂和可选支撑物的催化剂系统及其用于聚合或寡聚烯烃的用途.

专利信息

专利号:US-4565896-A
优先权日:1984-10-22
标 题 :Process for low pressure synthesis of ethylene glycol from synthesis gas
发明人：KNIFTON JOHN F; DURANLEAU ROGER G
权利人:TEXACO INC
摘要:This invention relates to the manufacture of ethylene glcyol and more particularly to a low pressure process for making ethylene glycol comprising reacting synthesis gas, i.e. a mixture of carbon monoxide and hydrogen, plus formaldehyde in the presence of a homogeneous liquid catalyst containing an effective amount of cobalt-containing compound and a silicon or germanium-containing promoter and a solvent at a temperature of at least 50 DEG C. and a pressure of at least 500 psi wherein said ethylene glycol product separates as a separate liquid phase from the solvent.

专利号:US-4568780-A
优先权日:1984-10-22
标 题 :Process for low pressure synthesis of ethylene glycol from synthesis gas plus 1,3-dioxolane
发明人：KNIFTON JOHN F
权利人:TEXACO INC
摘要:This invention relates to the manufacture of ethylene glycol and more particularly to a low pressure process for making ethylene glycol comprising reacting synthesis gas, i.e. a mixture of carbon monoxide and hydrogen, plus 1,3-dioxolane in the presence of a homogenous liquid catalyst containing an effective amount of cobalt-containing compound and a silane or germane-containing promoter dispersed in a hydrocarbon solvent at a temperature of at least 50 DEG C. and a pressure of at least 500 psi, where the particular solvents used allow the desired product to be separated from the reaction mixture by phase separation.

专利号:US-2006052532-A1
优先权日:2002-04-10
标 题 :Swellable, easily cross-linked, essentially linear polymers, and the use of the same in solid phase synthesis
发明人：RADEMANN JORG
权利人:RADEMANN JORG
摘要:The invention relates to a novel polymer compound, the use of the same and a method for solid phase synthesis using an inventive polymer compound. Said polymer compound comprises linear polymer chains of general formula [R—X]n, wherein R represents a hydrocarbon group and X represents a group comprising at least one heteroatom. The linear polymer chains are cross-linked with each other by means of linking groups.

专利号:US-3651151-A
优先权日:1964-12-04
标 题 :Preparation of polyphenyl ether from dihydric phenols
发明人：BRIDGER ROBERT F; KINNEY ROBERT E; WILILAMS ALBERT L
权利人:MOBIL OIL CORP
摘要:DIHYDRIC PHENOIS CAN BE USED DIRECTLY IN THE ULLMANN ETHER SYNTHESIS BY USING A COPPER SALT CATALYST AND AN AMINE SOLVENT THAT DISSOLVES THE CATALYST BY FORMING COORDINATE COVALENT BONDS WITH COPPER IONS.

专利号:EP-0228484-A1
优先权日:1985-11-29
标 题 :Production of mixtures containing ethylene glycol from synthesis gas
发明人：KNIFTON JOHN FREDERICK; DURANLEAU ROGER GEORGE; LIN JIANG-JEN; GRICE NEAL JOHN
权利人:TEXACO DEVELOPMENT CORP
摘要:A process for the production of mixtures containing ethylene glycol by reacting carbon monoxide, hydrogen and formaldehyde or 1,3-dioxolane at a temperature of at least 50°C and a pressure of at least 3.5 MPa in the presence of a cobalt catalyst, characterised in that the catalyst is a homogeneous liquid catalyst comprising cobalt, a halogen-free silicon compound having at least one carbon-­silican bond, and a solvent comprising an aromatic hydrocarbon or halohydrocarbon, a halo aromatic ether, a cyclic ether, or an excess of 1,3-dioxolane reactant.

专利号:US-5491167-A
优先权日:1993-01-29
标题 :Hexahydronaphthalene ester derivatives, their preparation and their therapeutic uses
发明人：ISHIHARA SADAO; KOGEN HIROSHI; KOGA TEIICHIRO; KITAZAWA EIICHI; SERIZAWA NOBUFUSA
权利人:SANKYO CO
摘要:Compounds of formula (I): ##STR1## and their salts and esters have the ability to inhibit the synthesis of cholesterol, and can thus be used for the treatment and prophylaxis of hypercholesterolemia and of various cardiac disorders.