CAS: 3430-23-7; 3,5-Dibromo-4-Methylpyridine

相似化合物

3430-22-6 870244-34-1 70201-42-2

上下游产品

3,5-dibromopyridine methyl iodide 3,4,5-trimethylpyridine 5-bromo-4-methyl-pyridine-3-carbaldehyde 4-(2-(3,4-bis-difluoromethoxy-phenyl)-2-{4-[2,2,2-trifluoro-1-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-phenyl}-ethyl)-3,5-dimethyl-pyridine 3-bromo-5-(4-methoxyphenyl)-4-methylpyridine

碘甲烷置于正丁基锂,二异丙胺体系中,用 四氢呋喃,正己烷 用作溶剂,化学反应 2.5H,反应生成3,5-二溴-4-甲基吡啶
参考文献:Indazolecarboxamide Derivatives,Preparation And Use Thereof As Cdk1,Cdk2 And Cdk4 Inhibitors
标题:Indazolecarboxamide Derivatives,Preparation And Use Thereof As Cdk1,Cdk2 And Cdk4 Inhibitors
摘要:通用公式(i)对应的化合物:其中,R1代表氢原子或卤素原子,Nh2,Nhr2,Nhcor2,No2,Cn,Ch2Nh2和ch2Nhr2;或者r1代表可选择取代的苯基或可选择取代的杂环芳基;Ar代表可选择取代的苯基或可选择取代的杂环芳基;N表示0,1,2或3;以碱,与酸的加合盐,水合物或溶剂化合物的形式.在治疗中的应用.

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.