CAS: 613-33-2; 4,4'-Dimethyldiphenyl

该化合物是一种双联苯衍生物,其特征是两个在准位置上相连的甲苯组,该化合物主要用作有机合成的中间体,特别是在染料,液体晶体和特殊聚合物的生产中,其硬性联苯结构有助于热稳定性,使之适合高温应用;对称替代物会增强晶体性,便于在交叉反应中有控制的再活动;4,4'-二甲苯还用于研究中位分子相互作用的研究环境;处理需要标准的芳烃防腐措施,因为其水溶性低和潜在易燃性;存储建议包括保护不受光和湿气的影响以保持纯度.

结构式图片

上下游产品

CAS号5720-05-8 对甲基苯基硼酸 | CAS号624-31-7 对碘甲苯 | CAS号106-43-4 对氯甲苯 | CAS号380481-66-3 4-甲基苯硼酸新戊二醇酯 | CAS号1576-35-8 对甲苯磺酰肼 | CAS号459-44-9 4-methylbenzene... | CAS号106-38-7 对溴甲苯 | CAS号591-50-4 碘苯 | CAS号18412-57-2 三乙氧基(对甲苯基)硅烷 | CAS号195062-57-8 4,4,5,5-四甲基-2-(... | CAS号56-23-5 四氯化碳 | CAS号612-75-9 3,3'-二甲基联苯 | CAS号7383-90-6 3,4'-dimethyl-1... | CAS号36393-42-7 4'-甲基联苯-4-甲醛 | CAS号2351-37-3 4,4'-联苯二乙酰氯 | CAS号787-70-2 4,4'-联苯二甲酸 | CAS号792-74-5 联苯二甲酸二甲酯 | CAS号720-73-0 4-甲基联苯甲酸 | CAS号66-98-8 4,4'-联苯二甲醛 | CAS号17919-34-5 4,4'-双(二乙氧基膦酰甲基)联苯

合成工艺路线路线简述

  • 合成目标产物 4,4'-Dimethylbiphenyl 主要起始原料 4-Iodotoluene
  • 5142-75-6 + 18282-51-4 = 613-33-2 + 79757-92-9
    反应条件:1.1 Reagents: Potassium Acetate,Tetrabutylammonium Bromide Catalysts: Palladium Diacetate,Tri-O-Tolylphosphine Solvents: N-Methyl-2-Pyrrolidone; 4 H,110 °C1.2 Reagents: Water
    标题:Pd-Catalyzed Atom-Efficient Cross-Coupling Of Triarylbismuth Reagents With Protecting Group-Free Iodophenylmethanols: Synthesis Of Biarylmethanols
    作者:Rao,Maddali L. N.; Et Al
    参考文献:Tetrahedron Letters 日期:2020 卷标:61(13)
4-Methyl-1-Butyltellanylbenzene置于四(三苯基膦)钯,Sodium Carbonate,Silver(L) Oxide体系中,用 甲醇 作为反应溶剂,化学反应 0.75H,以78%的收率获得产物4,4'-二甲基联苯
参考文献:芳基正丁基碲化物钯催化均偶联超声辅助合成对称联芳烃
标题:芳基正丁基碲化物钯催化均偶联超声辅助合成对称联芳烃
摘要:通过钯催化的芳基碲化物的均偶联反应描述并说明了具有吸电子或供电子取代基的对称联芳基的超声辅助合成.该程序可在较短的反应时间内轻松获得联芳基化合物,并且以非常好至极好的收率获得产物.
DOI:10.1055/s-0028-1087244

海关参考信息

专利信息


专利号:US-7956011-B2
优先权日:2005-05-04
标题:Materials and methods for the photodirected synthesis of oligonucleotide arrays
发明人:SERAFINOWSKI PAWEL JERZY; GARLAND PETER BRYAN
权利人:CANCER RES INST ROYAL
摘要:Materials and methods for photodirected synthesis of oligonucleotide arrays on a solid substrate by photodirected synthesis are disclosed which employ a film formed from (i) a photoacid generator that on photolysis generates acid that is capable of directly removing the protecting group of the linker molecules or oligonucleotides and (ii) a polymer substantially lacking electronegative heteroatoms that are capable of hydrogen bonding with photogenerated acid. Methods of synthesizing an oligomer arrays are also described that use a film that restricts diffusion of reactants and products on the substrate during synthesis of the array and which includes a precursor of a deprotecting reagent. The method involves removing one or more of the non-required products of the deprotection reaction from the reactive array elements at which they are produced during the reaction, in order to displace the deprotection reaction towards completion.

专利号:US-2010143980-A1
优先权日:2007-02-22
标题:Synthesis of novel xylosides and potential uses thereof
发明人:BALAGURUNATHAN KUBERAN; MANIVANNAN ETHIRAJAN; XYLOPHONE V VICTOR; TRAN VY MY; NGUYEN KHIEM
权利人:BALAGURUNATHAN KUBERAN; MANIVANNAN ETHIRAJAN; XYLOPHONE V VICTOR; TRAN VY MY; NGUYEN KHIEM
摘要:The present invention includes a xyloside for use in inducing synthesis of a glycosaminoglycan in a cell, the xyloside having a chemical structure of one of Formula (1), Formula (2), Formula (3), Formula (4), Formula (5), Formula (6), Formula (7), Formula (8), Formula (9), or Formula (10) as shown herein. Also, the present invention includes a method of making a xyloside for use in inducing synthesis of a glycosaminoglycan in a cell, wherein the method is performed with “Clickâ€? chemistry. Additionally, the present invention includes a method of administering a xyloside so as to induce synthesis of a glycosaminoglycan in a cell.

专利号:US-7247346-B1
优先权日:2002-08-28
标 题:Combinatorial fabrication and high-throughput screening of optoelectronic devices
发明人:SAGER BRIAN M; ROSCHEISEN MARTIN R; PETRITSCH KLAUS
权利人:NANOSOLAR INC
摘要:Methods and apparatus for the rapid and parallel synthesis of optoelectronic cell devices and for the high-throughput screening of such devices for useful properties are disclosed. The methods comprise the parallel synthesis of arrays of optoelectronic devices fabricated within an addressable sample-holding matrix. Each optoelectronic device is created and tested within an addressable sample-holder in the fabrication device.

专利号:US-6500904-B1
优先权日:2001-11-02
标 题:High molecular weight poly(imide)s and methods of synthesis thereof
发明人:HAYES ROBERT F
权利人:GEN ELECTRIC
摘要:A method for the synthesis of high molecular weight poly(imide)s comprising coupling poly(imide) precursors having complementary functional groups and a weight average molecular weight of less than about 50,000 Daltons to form high molecular weight poly (imides)s having a weight average molecular weight greater than 50,000 Daltons.

专利号:US-6197920-B1
优先权日:1999-07-21
标 题:Formulation for the production of 1, 3-bis (4-aminophenoxy) naphthalene and its polymer
发明人:CHENG KUN LIN; CHEN WEN-TUNG
权利人:CHINA TEXTILE INST
摘要:The present invention relates to the synthesis of new type of diamine monomer, 1,3-bis(4-amonophenoxy)naphthalene, and with such a compound to produce a series of aromatic polymers, including polyamide, polyimide, copoly(amide-imide)s, etc., such polymers having excellent resistance to heat and mechanical properties.

专利号:US-11485721-B2
优先权日:2017-11-21
标 题:Method for the metal-free preparation of a biaryl by a photosplicing reaction and their uses
发明人:KLOSS FLORIAN; NEUWIRTH TONI; HAENSCH VEIT; HERTWECK CHRISTIAN
权利人:LEIBNIZ INST FUER NATURSTOFF FORSCHUNG UND INFEKTIONSBIOLOGIE E V HANS KNOELL INST HKI; LEIBNIZ INST FUER NATURSTOFF FORSCHUNG UND INFEKTIONSBIOLOGIE E V HANS KNOELL INST
摘要:The present invention relates to a method for the metal-free preparation of a biaryl compound by a photosplicing reaction and its use in the preparation of chemical compounds, preferably of active ingredients e.g. in the fields of pharmaceuticals and agrochemicals. In particular, it refers to a method for the regiocontrolled preparation of a biaryl compound of formula (I): Ar—Ar′ by photochemically reacting a precursor compound of formula (II): Ar—L—Ar′ to form a biaryl compound of general formula: Ar—L—Ar′(II)→Ar—Ar′ (I) wherein Ar and Ar′, independently of each other, represent an unsubstituted or substituted C6-C20 aryl group or a heteroaryl group with 5-20 ring atoms selected from carbon, nitrogen, oxygen and sulfur, and L represents a group —X—Y—Z— as defined herein. The biaryl compounds are generally suitable as intermediates or key building blocks in a very broad spectrum of organic chemical syntheses and their respective utilities. Their use within the field of synthesis of active ingredients is an aspect of the invention, and their use in the preparation of pharmaceutically active ingredients is particularly preferred.
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合成参考文献


摘要:Amatore, M.; Aubert, C.; Malacria, M.; Petit, M., Science of Synthesis Knowledge Updates, (2012) 3, 48.
摘要:Sumida, Y.; Ohmiya, H., Science of Synthesis Knowledge Updates, (2022) 3, 43.
摘要:Weibel, J.-M.; Blanc, A.; Pale, P., Science of Synthesis Knowledge Updates, (2018) 1, 19.
摘要:Guram, A. S.; Milne, J. E.; Tedrow, J. S.; Walker, S. D., Science of Synthesis: Cross Coupling and Heck-Type Reactions, (2012) 1, 22.
摘要:Guram, A. S.; Milne, J. E.; Tedrow, J. S.; Walker, S. D., Science of Synthesis: Cross Coupling and Heck-Type Reactions, (2012) 1, 111.
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