CAS: 93-52-7; (1,2-Dibromoethyl)Benzene

上下游产品

styrene carbon tetrabromide ethylbenzene 1-(2-chlorovinyl)benzene phenylethane 1,2-diol 2-bromostyrene benzoic acid 2,2-dibromoacetophenone

苯乙烯置于草酰溴,二甲基亚砜体系中,用 二氯甲烷 作为反应溶剂,化学反应 0.5H,以97%的收率获得产物1,2-二溴乙基苯
参考文献:用二甲基亚砜和草酰溴溴化烯烃,炔烃和酮的高效方法
标题:用二甲基亚砜和草酰溴溴化烯烃,炔烃和酮的高效方法
摘要:摘要 据报道,Dmso和草酰溴的配对是用于各种烯烃,炔烃和酮的高效溴化试剂.这种溴化方法显示出显着的优势,例如条件温和,成本低,反应时间短,在大多数情况下提供优异的收率,并且是制备二溴化物和α-溴代酮的极具吸引力的替代方法. 据报道,Dmso和草酰溴的配对是用于各种烯烃,炔烃和酮的高效溴化试剂.这种溴化方法显示出显着的优势,例如条件温和,成本低,反应时间短,在大多数情况下提供优异的收率,并且是制备二溴化物和α-溴代酮的极具吸引力的替代方法.
DOI:10.1055/s-0037-1609560

专利信息

专利号:US-5856492-A
优先权日:1997-01-10
标题 :Efficient synthesis of a chiral mediator
发明人：CHEN CHENG YI; XU FENG; TILLYER RICHARD D; ZHAO DALIAN
权利人:MERCK & CO INC
摘要:An efficient method for the quantitative preparation and isolation of a compound of formula I ##STR1## or its enantiomer, a chiral mediator used in enantioselective synthesis.

专利号:US-4997991-A
优先权日:1990-03-26
标 题 :Synthesis of diethynylbenzene
发明人：CAROSINO LAWRENCE E; HERAK DAVID C
权利人:HERCULES INC
摘要:The invention provides an inexpensive synthesis process for preparation of diethynylbenzene monomers that are useful in the preparation of polyacetylenes. This process provides for the preparation of thermally sensitive monomers in a one-pot reaction using readily available materials at low temperatures in an environment capable of absorbing large amounts of energy. Divinylbenzene is first brominated and then dehydrobrominated with sodium hydroxide or potassium hydroxide preferably in the presence of a phase transfer agent followed by distillation to recover the diethylnylbenzene product.

专利号:US-7038062-B2
优先权日:2004-07-01
标题:Synthesis of cyclic trithiocarbonates from epoxides
发明人：PARKER DANE KENTON
权利人:GOODYEAR TIRE & RUBBER
摘要:This invention provides a low cost technique for synthesizing cyclic trithiocarbonates by a simple one step process from epoxides that can be conducted under atmospheric pressure. This synthesis can be depicted as follows: n nwherein R represents a moiety selected from the group consisting of alkyl groups and aryl groups, wherein R′ represents a moiety selected from the group consisting of alkyl groups, aryl groups, and hydrogen atoms, and wherein R″ represents a moiety selected from the group consisting of alkyl groups, aryl groups, and hydrogen atoms, wherein the R moiety and the R′ moiety can be bonded together to form a cyclic structure, with the proviso that R″ represents a hydrogen atom if R′ represents an alkyl group or an aryl group. In this process carbon disulfide and a thiocyanate salt, such as potassium thiocyanate, are reacted with the epoxide in an ionic liquid, such as 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim] PF 6 ) in the presence of water to produce the cyclic trithiocarbonate.

专利号:US-2015158020-A1
优先权日:2013-12-11
标题:Synthesis of zeolites using an organoammonium compound
发明人：NICHOLAS CHRISTOPHER P; MILLER MARK A
权利人:UOP LLC
摘要:A method for synthesizing a zeolite includes the steps of: (a) preparing an aqueous mixture comprising water, a substituted hydrocarbon and an amine; (b) reacting the aqueous mixture; (c) obtaining a solution comprising an organoammonium product; (d) forming a reaction mixture including reactive sources of M, Al, Si, optionally seeds of a layered material L, and the solution, wherein M is a metal; and (e) heating the reaction mixture to form the zeolite. The substituted hydrocarbon can be an α,ω-dihalogen substituted alkane, and the amine is preferably essentially incapable of undergoing pyramidal inversion.

专利号:US-9522896-B2
优先权日:2014-12-04
标题 :Organo-1-oxa-4-azonium cyclohexane compounds
发明人：NICHOLAS CHRISTOPHER P; MILLER MARK A; GALEY MELISSA M; YUHAS BENJAMIN D; PRABHAKAR SESH
权利人:UOP LLC
摘要:Novel 1-oxa-4-azonium cyclohexane salts are described. These compounds can be used as structure directing agents, and they overcome many of the typical problems associated with OSDA synthesis and subsequent zeolite synthesis. Methods for synthesis of the 1-oxa-4-azonium cyclohexane salts from a variety of starting materials are also described. A substituted hydrocarbon is added to water to form a mixture, and a 1-oxa-4-azacyclohexane derivative is then added. The reaction mixture stirred until a solution containing the 1-oxa-4-azonium cyclohexane salt is obtained.

专利号:US-10633355-B2
优先权日:2014-12-04
标题:Organo-1-oxa-4-azonium cyclohexane compounds
发明人：NICHOLAS CHRISTOPHER P; MILLER MARK A; GALEY MELISSA M; YUHAS BENJAMIN D; PRABHAKAR SESH
权利人:UOP LLC
摘要:Novel 1-oxa-4-azonium cyclohexane salts are described. These compounds can be used as structure directing agents, and they overcome many of the typical problems associated with OSDA synthesis and subsequent zeolite synthesis. Methods for synthesis of the 1-oxa-4-azonium cyclohexane salts from a variety of starting materials are also described. A substituted hydrocarbon is added to water to form a mixture, and a 1-oxa-4-azacyclohexane derivative is then added. The reaction mixture stirred until a solution containing the 1-oxa-4-azonium cyclohexane salt is obtained.