CAS: 327-54-8; 1,2,4,5-Tetrafluorobenzene

上下游产品

CAS号3217-47-8 2,3,5,6-四氟对二苯甲醛 | CAS号392-56-3 六氟苯 | CAS号828-73-9 五氟苯肼 | CAS号363-72-4 五氟苯 | CAS号344-03-6 1,4-二溴四氟苯 | CAS号392-57-4 1,4-二碘四氟苯 | CAS号355-68-0 全氟环己烷 | CAS号2716-07-6 4-chloro-2,3,5,... | CAS号344-04-7 溴五氟苯 | CAS号67-56-1 甲醇 | CAS号511295-01-5 (2,3,5,6-四氟苯基)硼酸 | CAS号92339-07-6 2,3,5,6-四氟对苯二甲醇 | CAS号392-57-4 1,4-二碘四氟苯 | CAS号5243-24-3 2,3,5,6-TETRAFL... | CAS号20133-21-5 1,2,4,5-苯四巯基 | CAS号344-03-6 1,4-二溴四氟苯 | CAS号19842-76-3 2,3,5,6-四氟苯甲醛 | CAS号652-36-8 四氟对苯二甲酸 | CAS号652-18-6 2,3,5,6-四氟苯甲酸 | CAS号6257-03-0 2,3,5,6-四氟硝基苯

五氟苯置于苯硅烷,1,3-Di-Tert-Butyl-2,3-Dihydro-1H-1,3,2-Diazaphosphole体系中,用 乙腈 用作溶剂,化学反应 5.0H,以92%的收率获得1,2,4,5-四氟苯
参考文献:二氮杂磷烯催化的多氟芳烃与苯基硅烷通过协同亲核芳烃取代加氢脱氟
标题:二氮杂磷烯催化的多氟芳烃与苯基硅烷通过协同亲核芳烃取代加氢脱氟
摘要:以二氮杂磷烯为催化剂,苯基硅烷为末端还原剂,实现了多氟芳烃的无金属催化 C-F 键活化.密度泛函理论计算表明了协调的亲核芳族取代机制.
Doi:10.1021/acs.Joc.1C02360

专利信息

专利号:US-7544847-B1
优先权日:2007-12-28
标 题:Method for producing 1,4-bis (dichloromethyl) tetrafluorobenzene
发明人：HO CHAN-YUAN; LIN TSAIR-FENG; LIN CHUN-HSU; WANG SHIEH-JUN
权利人:YUAN SHIN MATERIALS TECHNOLOGY; CHUN SHAN INST OF SCIENCE AND
摘要:A method for producing 1,4-bis(dichloromethyl)tetrafluorobenzene is disclosed, which is achieved by reacting tetrafluoroterephthaldehyde, SOCl 2 and organic solvents. In the synthesis of 1,4-bis(dichloromethyl)-tetrafluorobenzene by adding formamides as catalyst, there are remarkable advantages which include shortening the reaction time; simplifying the synthesizing steps and raising the yield of the product.

专利号:US-2019181348-A1
优先权日:2017-09-27
标题 :Branch point effect on structure and electronic properties of conjugated polymers
发明人：BRIDGES COLIN R; WANG MING; FORD MICHAEL J; BAZAN GUILLERMO C; SEGALMAN RACHEL A
权利人:UNIV CALIFORNIA
摘要:Synthesis of lyotropic semiconducting polymers having novel side chains enabling control over crystalline fraction, crystalline orientation, and the unit cell (specifically the Ï€-stacking distance). Moving the branch point in the side chain further from the conjugated backbone not only retains the lyotropic liquid crystalline behavior as observed by UV-vis and POM, but also achieves reduced Ï€-stacking distance. This results in higher charge carrier mobility, reaching (in one or more examples) a mobility of at least 0.41 cm 2 V −1 s −1 when the polymers were non-aligned.

专利号:US-4517129-A
优先权日:1983-02-15
标 题 :Process for the preparation of cyanotetrachlorobenzenes
发明人：MILNER DAVID J
权利人:ICI PLC
摘要:Cyanotetrachlorobenzenes, especially ortho- and para- dicyanotetrachlorobenzenes, are prepared by reacting in a liquid medium at 20 DEG -100 DEG C. a corresponding nitrotetrachlorobenzene with, in solution, an inorganic cyanide. Preferably the liquid medium is a two-phase water/water-immiscible organic solvent system, e.g. water/chloroform, a phase transfer catalyst is present and the inorganic cyanide is an alkali metal or alkaline earth metal cyanide. The compounds are useful chemical intermediates in the synthesis of, for instance, pesticidal compounds.

专利号:US-12173212-B2
优先权日:2020-08-21
标题:Design, synthesis, and photophysical properties of a novel NIR II dye for biological imaging and optoelectronic devices
发明人：DELCAMP JARED; HAMMER NATHAN; SCOTT COLLEEN
权利人:UNIV MISSISSIPPI; UNIV MISSISSIPPI STATE
摘要:In one aspect, the disclosure relates to fluorescent dyes that absorb and emit in the near infrared II (NIR II) range of the electromagnetic spectrum, methods of making same, compositions comprising same and methods of using the compositions to perform imaging on biological samples, and optoelectronic devices using the dyes. The dyes are small organic molecules that are inexpensive and facile to produce, can be water-soluble, have tunable properties, and are biocompatible and/or possess low toxicity.

专利号:US-5968736-A
优先权日:1992-10-01
标 题 :Methods for recording the reaction history of a solid support
发明人：STILL W CLARK; WIGLER MICHAEL H; OHLMEYER MICHAEL H J; DILLARD LAWRENCE W; READER JOHN C
权利人:COLD SPRING HARBOR LAB; UNIV COLUMBIA
摘要:Encoded combinatorial chemistry is provided, where sequential synthetic schemes are recorded using organic molecules, which define choice of reactant, and stage, as the same or different bit of information. Various products can be produced in the multi-stage synthesis, such as oligomers and synthetic non-repetitive organic molecules. Conveniently, nested families of compounds can be employed as identifiers, where number and/or position of a substituent define the choice. Alternatively, detectable functionalities may be employed, such as radioisotopes, fluorescers, halogens, and the like, where presence and ratios of two different groups can be used to define stage or choice. Particularly, pluralities of identifiers may be used to provide a binary or higher code, so as to define a plurality of choices with only a few detachable tags. The particles may be screened for a characteristic of interest, particularly binding affinity, where the products may be detached from the particle or retained on the particle. The reaction history of the particles which are positive for the characteristic can be determined by the release of the tags and analysis to define the reaction history of the particle.

专利号:US-8952207-B2
优先权日:2007-09-11
标题:Copper-catalyzed C—H bond arylation
发明人：DAUGULIS OLAFS; DO HIEN-QUANG
权利人:DAUGULIS OLAFS; DO HIEN-QUANG; UNIV HOUSTON SYSTEM
摘要:The present invention is a one-step method for efficiently converting carbon-hydrogen bonds into carbon-carbon bonds using a combination of aryl halides, a substrate, and a copper salt as catalyst. This method allows faster introduction of complex molecular entities, a process that would otherwise require many more steps. This invention is particularly relevant for the organic synthesis of complex molecules such as, but not limited to, pharmacophores and explosives.