CAS: 106-37-6; 1,4-Dibromobenzene

上下游产品

tetrachloromethane N-Bromosuccinimide cyclohexene dibenzoyl peroxide N-(4-bromophenyl)piperidine bromobenzene 4-Bromobenzoic acid terephthalic acid

4-溴苯胺置于tetrafluoroboric Acid,亚硝酸特丁酯,四溴化碳,2,3-丁二酮体系中,用 乙醇,水,二氯甲烷 用作溶剂,化学反应 1.0H,以76%的收率获得1,4-二溴苯
参考文献:在无水和无催化剂条件下苯胺的光诱导乙酰化
标题:在无水和无催化剂条件下苯胺的光诱导乙酰化
摘要:已经报道了在温和条件下绿色且有效的可见光诱导的苯胺官能化.以无毒,经济,水溶性的双乙酰为光敏剂和乙酰化试剂,以水用作溶剂,将多种苯胺转化为相应的芳基酮,碘化物和溴化物.该反应具有条件环境友好,操作简单,底物范围广,官能团耐受性好等优点,是一种有价值的有机合成方法.
Doi:10.1021/acs.Joc.1C01290

专利信息

专利号:US-10472325-B2
优先权日:2015-10-29
标题:Process for the synthesis of pirfenidone
发明人：MOSSOTTI MATTEO; BAROZZA ALESSANDRO; ROLETTO JACOPO; PAISSONI PAOLO
权利人:PROCOS SPA
摘要:Disclosed is a process for the synthesis of Pirfenidone (1) from 5-methyl-2(1H)-pyridinone and chlorobenzene in the presence of a catalytic system consisting of a copper salt and an organic ligand, in the presence of a base. n n n n n n n n n n The process exploits the high efficiency of the catalytic system consisting of copper(I) salt and an organic ligand in the presence of an inorganic base in the N-amidation reaction of chlorobenzene, a cheap reagent also usable as solvent in this case; reaction conditions at high temperatures, at atmosphere pressure or higher, produce a reaction with good yields.

专利号:US-9580323-B2
优先权日:2013-05-31
标题 :Method of producing graphene and other carbon materials
发明人：MUKASYAN ALEXANDER; MANUKYAN KHACHATUR
权利人:MUKASYAN ALEXANDER; MANUKYAN KHACHATUR; UNIV NOTRE DAME DU LAC
摘要:The invention provides methods for the combustion synthesis (CS) of graphene by a novel exothermic self-sustained reaction between a refractory ceramic compound and a carbon-containing polymer under an inert gas atmosphere. The synthesis of graphene was confirmed by both transmission electron microscopy and Raman spectroscopy. The graphene produced has very low (<1 wt. %) oxygen content. Fluorocarbon gases released due to decomposition of the carbon-containing polymer in the combustion wave can reduce the ceramic to a gas and mesoporous carbon particles and graphene layers. The method does not require an external energy source because it occurs in a self-sustained synergetic manner after ignition. The methods are flexible in terms of tuning the synthesis conditions for desired products, and the method can be scaled to provide kilogram quantities.

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-2006229475-A1
优先权日:2005-04-11
标题:Synthesis of hydroxylated hydrocarbons
发明人：WEISS MICHAEL J; SUN SHOULI
权利人:WEISS MICHAEL J; SUN SHOULI
摘要:Ethylene glycol, other diols, triols, and polyols are made in an efficient manner by reacting dibromides with water in the presence of a metal oxide. An integrated process of dibromide formation, alcohol synthesis, metal oxide regeneration, and bromine recycling is also provided.

专利号:US-5484883-A
优先权日:1990-06-25
标题 :Lithium/HMPA-promoted synthesis of poly(phenylenes)
发明人：TOUR JAMES M; STEPHENS ERIC B
权利人:UNIV SOUTH CAROLINA
摘要:Poly(phenylene) that is substantially free of insoluble material is prepared by the polymerization of a lithioarylhalide compound in the presence of a polar aprotic compound such as hexamethylphosphoramide, N,N,N',N'-tetramethylethylenediamine or hexamethylphosphorous triamide. The preferred reaction involves the polymerization of 1-bromo-4-lithiobenzene in the presence of hexamethylphosphoramide. The 1-bromo-4-1ithiobenzene may be synthesized by reacting 1,4-dibromobenzene with t-butyllithium. These same types of reactions can also be used to synthesis other benzenoid polymers.