CAS: 79-27-6; 1,1,2,2-Tetrabromoethane

上下游产品

CAS号74-86-2 乙炔 | CAS号74-84-0 乙烷 | CAS号106-93-4 1,2-二溴乙烷 | CAS号79-01-6 三氯乙烯 | CAS号5721-88-0 2-phenyl-1,3-ox... | CAS号27001-65-6 1,3-Oxathiolane... | CAS号75-25-2 三溴甲烷 | CAS号540-49-8 1,2-二溴乙烯 | CAS号79-34-5 四氯乙烷 | CAS号359-35-3 1,1,2,2-四氟乙烷 | CAS号430-90-0 1-bromo-1,2,2-t... | CAS号598-16-3 三溴乙烯 | CAS号593-55-5 乙胺氢溴酸盐 | CAS号10035-10-6 氢溴酸 | CAS号7726-95-6 溴素 | CAS号74-83-9 溴甲烷 | CAS号67-72-1 六氯乙烷 | CAS号612-00-0 1,1-二苯基乙烷 | CAS号108-86-1 溴苯

二溴化乙炔置于溴体系中,化学反应生成 1,1,2,2-四溴乙烷
参考文献:Anschuetz,Justus Liebigs Annalen Der Chemie,1883,Vol. 221,P. 137
标题:Anschuetz,Justus Liebigs Annalen Der Chemie,1883,Vol. 221,P. 137

专利信息

专利号:US-2023114534-A1
优先权日:2021-10-11
标题:High Temperature Chemical Process For The Preparation Of Cesium Tungstate
发明人：CARDARELLI FRANCOIS
权利人:CARDARELLI FRANCOIS
摘要:The present disclosure broadly relates to a high temperature chemical process for the synthesis of cesium tungstate in the solid state and the preparation of aqueous solutions or deuterated solutions of cesium tungstate. More specifically, but not exclusively, the present disclosure relates to a high temperature chemical process in which tungsten oxide compounds such as tungsten oxides, or natural or synthetic concentrates such as wolframite or scheelite, tungsten industrial by-products or there mixture thereof, are mixed with cesium compounds such as cesium carbonate, or cesium sulfate, or cesium hydroxide or their mixtures thereof and the mixture is roasted in air or oxygen at high temperature inside a kiln. After cooling, the solid sintered mass containing cesium tungstate is leached or dissolved with water or heavy water for producing dense aqueous solutions or deuterated solutions of cesium tungstate.

专利号:US-7833926-B2
优先权日:2005-07-01
标题 :Arylphenoxy catalyst system for producing ethylene homopolymer or copolymers of ethylene and α-olefins
发明人：WOO TAE WOO; OK MYUNG AHN; HAHN JONG SOK; LEE MAL-OU; KANG SANG OOK; KO SUNG-BO; KIM TAE-JIN; KIM SUNG-KWAN
权利人:SK ENERGY CO LTD
摘要:The present invention relates to an arylphenoxy catalyst system producing an ethylene homopolymer or copolymers of ethylene and α-olefins, and a method of producing an ethylene homopolymer or copolymers of ethylene and α-olefins having a high molecular weight under a high temperature solution polymerization condition using the same. The catalyst system includes a group IV arylphenoxy-based transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst. In the transition metal catalyst, a cyclopentadiene derivative and arylphenoxide as fixed ligands are located around the group IV transition metal, arylphenoxide is substituted with at least one aryl derivative and is located at the ortho position thereof, and the ligands are not crosslinked to each other. The catalyst includes an environmentally-friendly raw material, synthesis of the catalyst is economical, and thermal stability of the catalyst is excellent. It is useful for producing an ethylene homopolymer or copolymers of ethylene and α-olefins having various physical properties in commercial polymerization processes.

专利号:US-4356308-A
优先权日:1980-04-05
标 题 :Process for the preparation of 2,2,6,6-tetramethylpiperidone-4
发明人：WIEZER HARTMUT; NOWY GUENTHER; HAEBERLEIN HARALD
权利人:HOECHST AG
摘要:In the synthesis of 2,2,6,6-tetramethylpiperidone-4 (triacetone-amine) from acetone and ammonia, a partially halogenated or perhalogenated aliphatic or cyclic hydrocarbon is used as catalyst in an amount of from 0.01 to 5 mol %, relative to acetone.

专利号:US-2025164360-A1
优先权日:2022-06-09
标 题:On-slide synthesis of a schiff reagent
发明人：BIRD JEAN MARIE; CANTORIA MARY JO CASTRO; DURRANT EDWARD E; HANNON ANDREW
权利人:VENTANA MED SYST INC
摘要:The present disclosure is directed to compositions, kits, and methods for synthesizing a Schiff's reagent in situ, i.e., directly on a substrate, such as within a puddle disposed on the surface of a substrate. In some embodiments, the kits comprise at least a dye composition and a sulfite composition. In some embodiments, the dye composition comprises a compound having a 4-Benzhydrylidene-2,5-cyclohexadien-1-imine core functionalized to include at least two substituted or unsubstituted amine groups, wherein the compound has a molecular weight ranging from between about 300 g/mol to about 600 g/mol. In some embodiments, the dye composition optionally includes an acid. In some embodiments, the sulfite composition comprises a sulfite or SO2 source.

专利号:US-6657068-B2
优先权日:2002-03-22
标题:Liquid phase oxidation of halogenated ortho-xylenes
发明人：COLBORN ROBERT EDGAR; HALL DAVID BRUCE; KOCH PETER; OECKEL GERALD
权利人:GEN ELECTRIC
摘要:A method for the manufacture of halophthalic acid by liquid phase oxidation of halo-ortho-xylene is disclosed. The halophthalic acid may be dehydrated to form halophthalic anhydride which is useful in the synthesis of polyetherimide.

专利号:US-6649773-B2
优先权日:2002-03-22
标题:Method for the manufacture of halophthalic acids and anhydrides
发明人：COLBORN ROBERT EDGAR; HALL DAVID BRUCE; KOCH PETER; OECKEL GERALD
权利人:GEN ELECTRIC
摘要:A method for the manufacture of halophthalic acid by liquid phase oxidation of halo-ortho-xylene is disclosed. The halophthalic acid may be dehydrated to form halophthalic anhydride which is useful in the synthesis of polyetherimide.