CAS: 3141-27-3; 2,5-Dibromothiophene

上下游产品

CAS号1003-09-4 2-溴噻吩 | CAS号188290-36-0 Thiophene(SIV) | CAS号17906-71-7 2,5-双(三甲基甲硅烷基)噻吩 | CAS号3437-95-4 2-碘噻吩 | CAS号146434-35-7 2,5-bis(trimeth... | CAS号506-68-3 溴化氰 | CAS号79-15-2 N-溴代乙酰胺 | CAS号128-08-5 N-溴代丁二酰亚胺 | CAS号7726-95-6 溴素 | CAS号7664-93-9 硫酸 | CAS号4805-22-5 5,5'-二溴-2,2'-联噻吩 | CAS号4282-31-9 噻吩-2,5-二羧酸 | CAS号4282-34-2 2,5-噻吩二甲酸甲酯 | CAS号6012-97-1 四氯噻吩 | CAS号527-72-0 2-噻吩甲酸 | CAS号4701-17-1 5-溴噻吩-2-甲醛 | CAS号3958-03-0 四溴噻吩 | CAS号5370-25-2 2-乙酰基-5-溴噻吩 | CAS号80775-39-9 2,5-二溴-3-乙酰基噻吩 | CAS号80775-44-6 2-acetyl-3,4,5-...

噻吩置于n-溴代丁二酰亚胺(Nbs)体系中,用 N,N-二甲基甲酰胺 用作溶剂,化学反应 6.0H,以72%的收率获得2,5-二溴噻吩
参考文献:第一代联噻吩硅烷树枝状聚合物的合成
标题:第一代联噻吩硅烷树枝状聚合物的合成
摘要:描述了三{5'-[甲基双(2-噻吩基)甲硅烷基]2,2'-联噻吩基-5-基}甲基硅烷(第一代联噻吩硅烷树枝状聚合物)的合成.找到了有效形成甲基三噻吩基硅烷的条件;首次合成了甲基三(5-溴-2-噻吩基)硅烷和许多其他甲基三噻吩基硅烷的单官能衍生物.讨论了 Suzuki 和 Kumada 反应在合成低聚噻吩基硅烷树枝状聚合物中形成联噻吩基片段的优缺点.
Doi:10.1007/s11172-005-0306-4

专利信息

专利号:WO-2021019559-A1
优先权日:2019-07-30
标题 :Synthesis of 5-(3-pyridyl)-2,2'-bithiophene(sensitizer)
发明人：DATLA ANUPAMA; NAGRE PRASHANT; TAMORE JAGDISH; PRABHU MANOJKUMAR SADANAND; KADAM SACHIN VASANT
权利人:FERMENTA BIOTECH LTD
摘要:Disclosed herein is a novel simple, short process for synthesis of the photosensitizer, 5-(3-pyridyl)-2,2'-bithiophene.

专利号:US-7834106-B2
优先权日:2005-04-01
标题:Living synthesis of conducting polymers including regioregular polymers, polythiophenes, and block copolymers
发明人：MCCULLOUGH RICHARD D; SHEINA ELENA E; IOVU MIHAELA C
权利人:UNIV CARNEGIE MELLON
摘要:Regioregular poly(3-alkylthiophenes) and other polythiophenes can be prepared by living polymerization which have good solubility, processability and environmental stability. The polymerization method can afford regioregular poly(3-alkylthiophenes) in high yields. Kinetic study of polymerization revealed the living character of this process. The molecular weight of poly(3-alkylthiophenes) is a function of the molar ratio of the monomer to nickel initiator, and conducting polymers with relatively narrow molecular weight distribution (PDI<1.5) are now readily available. Sequential monomer addition resulted in new block copolymers containing different poly(3-alkylthiophene) segments, which further confirms the “livingnessâ€? of this system. Other synthetic methods can be used as well to conduct living polymerization. Blends and electronic devices can be prepared.

专利号:US-8981036-B2
优先权日:2012-08-02
标 题:Synthesis of and curing additives for phthalonitriles
发明人：KELLER TEDDY M; LASKOSKI MATTHEW
权利人:KELLER TEDDY M; LASKOSKI MATTHEW; US NAVY
摘要:A composition having a mixture of the below compounds having a mole ratio of at least 1:20. Ar 1 and Ar 2 are independently selected aromatic groups. A composition comprising phthalonitrile compounds that comprise at least 5 mol % of the first compound below. n nA method of: providing a solution of a dichloroaromatic compound having an electron-withdrawing group bound to each aromatic ring containing one of the chloride groups; a dihydroxyaromatic compound or anion thereof; an organic transition metal complex or a transition metal salt; an alkaline hydroxide base; and a solvent; and heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form a dimetallic salt of an aromatic ether oligomer. The molar ratio of the dihydroxyaromatic compound to the dichloroaromatic compound is greater than 2:1. Water formed during the heating is concurrently distilled from the solution.

专利号:WO-2015183518-A1
优先权日:2013-03-15
标 题:Synthesis of and curing additives for phthalonitriles
发明人：KELLER TEDDY M; LASKOSKI MATTHEW; SAAB ANDREW
权利人:US GOVERNMENT; KELLER TEDDY M; LASKOSKI MATTHEW; SAAB ANDREW
摘要:A method of: providing a solution of a dichloroaromatic compound having an electron- withdrawing group bound to each aromatic ring containing one of the chloride groups; a dihydroxyaromatic compound or anion thereof; an organic transition metal complex or a transition metal salt; a base; and a solvent; and heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form a dimetallic salt of an aromatic ether oligomer. The molar ratio of the dihydroxyaromatic compound to the dichloroaromatic compound is greater than 2: 1. Water formed during the heating is concurrently distilled from the solution. A composition having a mixture of the below compounds having a mole ratio of at least 1:20. Ar 1 and Ar 2 are independently selected aromatic groups. A composition comprising phthalonitrile compounds that comprise at least 5 mol% of the first compound below.

专利号:US-9663594-B2
优先权日:2014-05-15
标 题 :Synthesis of aryl coupled bis phenoxides and their use in olefin polymerization catalyst systems with activator-supports
发明人：HLAVINKA MARK L
权利人:CHEVRON PHILLIPS CHEMICAL CO LP; CHEVRON PHILIPS CHEMICAL COMPANY LP
摘要:Disclosed herein are methods of making bis(phenol) ligand compounds and transition metal bis(phenolate) compounds. The transition metal bis(phenolate) compounds can be used as components in catalyst systems for the polymerization of olefins.

专利号:US-8735532-B2
优先权日:2012-08-02
标题 :Synthesis of and curing additives for phthalonitriles
发明人：KELLER TEDDY M; LASKOSKI MATTHEW; SAAB ANDREW
权利人:KELLER TEDDY M; LASKOSKI MATTHEW; SAAB ANDREW; US NAVY
摘要:A method of: providing a solution of a dichloroaromatic compound having an electron-withdrawing group bound to each aromatic ring containing one of the chloride groups; an excess of a dihydroxyaromatic compound; an organic transition metal complex or a transition metal salt; a base; and a solvent; and heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form an aromatic ether oligomer that is a dihydroxy-terminated compound or a dimetallic salt thereof. Water formed during the heating is concurrently distilled from the solution. A method of curing a phthalonitrile monomer in the presence of an acid and a curing agent to form a phthalonitrile thermoset.