CAS: 1478-61-1; 4,4'-(Perfluoropropane-2,2-Diyl)Diphenol

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83558-87-6 1171-47-7 88964-96-9

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CAS号24427-67-6 1,1,1,2,3,3,3-h... | CAS号108-95-2 苯酚 | CAS号684-16-2 六氟丙酮 | CAS号189039-61-0 2-bromo-4-[2-(3... | CAS号88964-95-8 1-bromo-4-[2-(4... | CAS号61778-79-8 5-[4-[2-[4-[(1,...

Hexachlorobisphenol A置于氢氟酸,三乙胺体系中,化学反应 6.0H,以92.8%的收率获得六氟双酚 A
参考文献:一种六氟双酚a的合成方法
标题:一种六氟双酚a的合成方法
摘要:本发明提供一种六氟双酚a的合成方法,包括以下步骤:A)将六氯丙酮和苯酚在路易斯酸催化剂下反应,得到六氯双酚a;B)将六氯双酚a与氟化氢进行氟化反应,得到六氟双酚a.该方法通过采用路易斯酸做催化剂,改变苯酚的电子反应特性,使得苯酚的对位碳原子与六氯丙酮的羰基发生加成消除反应得到而不是苯酚的氧原子与六氯丙酮发生氯原子发生亲核取代反应从而得到的中间体六氯双酚a,然后将六氯双酚a经氟化得到六氟双酚a.该方法以廉价易得,毒性较小的六氯丙酮取代六氟丙酮和六氟环氧丙烷作为原料,对设备要求较低,有利于安全生产,降低生产成本,为六氟双酚a的合成方法提供了新思路.该方法制得的六氟双酚a具有较高的收率,且纯度较高.

专利信息

专利号:US-11970449-B2
优先权日:2021-10-04
标 题:Mechanochemical based synthesis of perfluoropyridine monomers for polymerization
发明人：IACONO SCOTT T; FRIESEN CHADRON M
权利人:US GOV AIR FORCE; US AIR FORCE
摘要:The present invention relates to a mechanochemical based synthesis of perfluoropyridine monomers, polymers made using such monomers and methods of making and using articles comprising such polymers. Such perfluoropyridine monomers are easily chemically tuned have the strength needed for high temperature applications and the flexibility needed for low temperature applications. In addition, to the aforementioned monomers, a mechanochemical based synthesis for such perfluoropyridine monomers is provided. All of the aforementioned performance application advantages are also found in polymers comprising Applicants' perfluoropyridine monomers.

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:US-7615300-B2
优先权日:2005-08-30
标 题 :Development of novel proton-conductive polymers for proton exchange membrane fuel cell (PEMFC) technology
发明人：BAE CHULSUNG
权利人:REGENTS UNIVERSITY AND COMMUNI
摘要:New thermally and chemically stable sulfonic acid-containing polymers are synthesized via post-sulfonation of aromatic polymers. These new polymers provide unique benefits to proton exchange membrane fuel cell technology (“PEMFCâ€?). As a sulfonic acid moiety can be easily installed into an aromatic ring via electrophilic sulfonation, even in the presence of an electron-withdrawing substituent such as —F, rigid polymers consisting of aromatic rings at either the side chain or main chain can be prepared with a wide range of substituents and flexibility in properties. Novel synthetic procedures are provided for synthesis of the polymers.

专利号:US-9085692-B1
优先权日:2014-02-25
标题 :Synthesis of oligomeric divinyldialkylsilane containing compositions
发明人：LASKOSKI MATTHEW; KELLER TEDDY M; SAAB ANDREW
权利人:LASKOSKI MATTHEW; KELLER TEDDY M; SAAB ANDREW; US GOVERNMENT
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; a base; and a solvent; heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form an aromatic ether oligomer; and reacting the aromatic ether oligomer with a chlorodialkylvinylsilane to form one or more vinyl-terminated compounds having the formula below. The aromatic ether oligomer is a dihydroxy-terminated compound or a dimetallic salt thereof. Water formed during the heating is concurrently distilled from the solution. Each R is an alkyl group, Ar 1 is a residue from the dichloroaromatic compound, Ar 2 is a residue from the dihydroxyaromatic compound, and n is a non-negative integer.

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-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.