CAS: 625-92-3; 3,5-Dibromopyridine

相似化合物

626-55-1 13534-90-2 624-28-2

上下游产品

CAS号2402-99-5 3,5-二溴吡啶 N-氧化物 | CAS号18820-82-1 吡啶氢溴酸盐 | CAS号628-13-7 吡啶盐酸盐 | CAS号89-00-9 吡啶-2,3-二羧酸 | CAS号632-49-5 pyridinepentaca... | CAS号6091-44-7 哌啶盐酸盐 | CAS号65520-08-3 3-bromopyridine... | CAS号110-86-1 吡啶 | CAS号13534-90-2 3,4-二溴吡啶 | CAS号96-22-0 3-戊酮 | CAS号3543-02-0 3,5-二羟基吡啶 | CAS号342603-10-5 3-B°C-氨基-5-甲氧基吡啶 | CAS号3430-23-7 3,5-二溴-4-甲基吡啶 | CAS号125419-80-9 4-乙基-3,5-二溴吡啶 | CAS号4318-78-9 吡啶-3,5-二胺 | CAS号407-20-5 3-溴-5-氟吡啶 | CAS号3430-16-8 3-溴-5-甲基吡啶 | CAS号40472-88-6 3-溴-5-(1-丙烯-2-基)吡啶 | CAS号477251-98-2 5-(甲硫基)吡啶-3-硼酸 | CAS号361550-43-8 5-溴吡啶-3-甲酸叔丁酯

哌啶盐酸盐置于溴体系中,化学反应生成 3,5-二溴吡啶
参考文献:Schotten,Chemische Berichte,1882,Vol. 15,P. 425
标题:Schotten,Chemische Berichte,1882,Vol. 15,P. 425

专利信息

专利号:US-8569560-B2
优先权日:2006-10-13
标题 :Synthesis of terminal alkenes from internal alkenes via olefin metathesis
发明人：SCHRODI YANN; PEDERSON RICHARD L; KAIDO HIROKI; TUPY MICHAEL J
权利人:ELEVANCE RENEWABLE SCIENCES
摘要:This disclosure relates generally to olefin metathesis, and more particularly relates to the synthesis of terminal alkenes from internal alkenes using a cross-metathesis reaction catalyzed by an olefin metathesis catalyst. According to one aspect, for example, a method is provided for synthesizing a terminal olefin, the method comprising contacting, in the presence of a ruthenium alkylidene metathesis catalyst, an olefinic substrate comprised of at least one internal olefin with a cross metathesis partner comprised of an alpha olefinic reactant, under reaction conditions effective to allow cross-metathesis to occur, wherein the reaction conditions include a reaction temperature of at least 35° C. The methods, compositions, reactions and reaction systems herein disclosed have utility in the fields of catalysis, organic synthesis, and industrial chemistry.

专利号:US-9255117-B2
优先权日:2006-07-13
标题 :Synthesis of terminal alkenes from internal alkenes and ethylene via olefin metathesis
发明人：SCHRODI YANN
权利人:MATERIA INC
摘要:This invention relates generally to olefin metathesis, and more particularly relates to the synthesis of terminal alkenes from internal alkenes using a cross-metathesis reaction catalyzed by a selected olefin metathesis catalyst. In one embodiment of the invention, for example, a method is provided for synthesizing a terminal olefin, the method comprising contacting an olefinic substrate comprised of at least one internal olefin with ethylene, in the presence of a metathesis catalyst, wherein the catalyst is present in an amount that is less than about 1000 ppm relative to the olefinic substrate, and wherein the metathesis catalyst has the structure of formula (II) n nwherein the various substituents are as defined herein. The invention has utility, for example, in the fields of catalysis, organic synthesis, and industrial chemistry.

专利号:US-6946533-B2
优先权日:2002-08-01
标 题 :Synthesis of macrocyclic polymers by ring insertion polymerization of cyclic olefin monomers
发明人：GRUBBS ROBERT; BIELAWSKI CHRIS; BENITEZ DIEGO
权利人:CALIFORNIA INST OF TECHN
摘要:A method for synthesizing cyclic polymers using transition metal alkylidene complexes as reaction catalysts is provided, wherein the complexes contain a cyclic group. Polymerization is carried out on the catalyst, using cyclic olefin monomers that undergo ring insertion polymerization, and no linear intermediates are generated. Following completion of polymerization, the cyclic polymer detaches from the complex via an intramolecular chain transfer reaction and the catalytic complex is regenerated. The invention also provides novel transition metal alkylidene complexes useful as catalysts in the aforementioned process, as well as novel cyclic hydrocarbons.

专利号:US-11794179-B2
优先权日:2016-08-24
标 题 :Synthesis and characterization of metathesis catalysts
发明人：JOHNS ADAM M
权利人:UMICORE AG & CO KG
摘要:This invention relates generally to olefin metathesis catalysts, to the preparation of such compounds, compositions comprising such compounds, methods of using such compounds, and the use of such compounds in the metathesis of olefins and in the synthesis of related olefin metathesis catalysts. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and in industrial applications such as oil and gas, fine chemicals and pharmaceuticals.

专利号:US-2006116519-A1
优先权日:2004-11-17
标 题:Synthesis of 5-bromo-4-methyl-pyridin-3-ylmethyl)-ethyl-carbamic acid tert-butyl ester
发明人：MA CHUNRONG; TIAN QINGPING
权利人:AGOURON PHARMA
摘要:The present invention relates to novel synthetic methods for the preparation of intermediates of 3{5-[3-(4,6-Difluoro-1H-benzoimidazol-2-yl)-1H-indazol-5-yl]4-methyl-pyridin-3-yl methyl}-ethyl-amine.

专利号:US-2025026871-A1
优先权日:2021-04-06
标 题:Cyclic ruthenium benzylidene initiators for enhanced ring expansion metathesis polymerization
发明人：GOLDER MATTHEW; WANG TENG-WEI; JOHNSON JEREMIAH A
权利人:UNIV WASHINGTON; MASSACHUSETTS INSTITUTE OF TECH M I T; MASSACHUSETTS INST TECHNOLOGY
摘要:Cyclic ruthenium benzylidene initiators useful for the controlled synthesis of functionalized cyclic macromolecules via ring-expansion metathesis polymerization.