会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Process for the preparation of biaryls
    • 联芳基的制备方法
    • US5451703A
    • 1995-09-19
    • US255550
    • 1994-05-31
    • Thomas SchachTheodor PapenfuhsJoachim Hackenbruch
    • Thomas SchachTheodor PapenfuhsJoachim Hackenbruch
    • C07B37/04C07C17/26C07C1/32
    • C07B37/04C07C17/269
    • Process for the preparation of biaryls of the formula (1)R.sup.1.sub.m --Ar--Ar--R.sup.1.sub.m (1)wherein Ar is a phenylene or naphthylene radical, R.sup.1 is a hydrogen, fluorine or chlorine atom or an unbranched or branched alkyl(C.sub.1 -C.sub.6)--, alkyl(C.sub.1 -C.sub.6)--O--, alkyl(C.sub.1 -C.sub.6)--CO-- or alkyl(C.sub.1 -C.sub.6)--SO.sub.2 -- radical and m is the number of still unsubstituted ##STR1## positions on the Ar radical, in which a compound of the formula (2)R.sup.1.sub.m --Ar--X (2)wherein Ar, R.sup.1 and m have the meanings cited above and X is a chlorine or bromine atom, is dehalogenated and dimerized in the presence of a palladium catalyst on a support material, of a reducing agent, a hydrogen halide acceptor, a polyether or polyether mixture and of water at temperatures of about 50.degree. to about 120.degree. C.
    • 制备式(1)的联芳基的方法R1m-Ar-Ar-R1m(1)其中Ar为亚苯基或亚萘基,R1为氢,氟或氯原子或未支化或支链烷基(C1-C6 ) - ,烷基(C 1 -C 6)-O-,烷基(C 1 -C 6)-CO-或烷基(C 1 -C 6)-SO 2 - 基,m是​​Ar基团上仍未取代的取代基数, 其中式(2)R1m-Ar-X(2)的化合物其中Ar,R1和m具有上述含义,X为氯或溴原子,在钯催化剂存在下脱卤并二聚 还原剂,卤化氢受体,聚醚或聚醚混合物和水的载体材料,在约50℃至约120℃的温度下进行。
    • 2. 发明授权
    • Process for the preparation of 1,4-bis(4-hydroxybenzoyl)benzene
    • 制备1,4-双(4-羟基苯甲酰基)苯的方法
    • US5264633A
    • 1993-11-23
    • US854658
    • 1992-04-29
    • Joachim HackenbruchTheodor PapenfuhsArnold Schneller
    • Joachim HackenbruchTheodor PapenfuhsArnold Schneller
    • B01J31/02C07B61/00C07C45/54C07C49/83
    • C07C45/54
    • A process for the preparation of 1,4-bis(4-hydroxybenzoyl)benzene of the formula (I) ##STR1## by rearranging diphenyl terephthalate of the formula (II) ##STR2## in about 3 to about 50 parts, relative to the diphenyl terephthalate, of an anhydrous organic solvent which is inert to the reactants, in the presence of about 30 to about 500 mol-% of a haloalkanesulfonic acid (catalyst) of the general formula (III) or (IV)Y(C.sub.n X.sub.2n)SO.sub.3 H (III)Y(C.sub.n F.sub.2n)SO.sub.3 H (IV)in which Y is a fluorine or hydrogen atom, and X is a fluorine and/or chlorine atom, with the proviso that at least one X is a fluorine atom, and n is an integer from 1 to 10, at temperatures of about 10.degree. to about 200.degree. C.
    • PCT No.PCT / EP90 / 01809 Sec。 一九九二年四月二十九日 102(e)日期1992年4月29日PCT 1990年10月25日PCT PCT。 公开号WO91 / 0652400 1991年5月16日。一种通过重新排列式(II)的对苯二甲酸二苯酯的制备式(I)的1,4-双(4-羟基苯甲酰基)苯的方法(I) )在约30至约500摩尔%的通式(I)的卤代烷基磺酸(催化剂)存在下,相对于对苯二甲酸二苯酯,为约3至约50份对反应物呈惰性的无水有机溶剂 (III)或(IV)Y(CnX2n)SO3H(Ⅲ)Y(CnF2n)SO3H(IV),其中Y是氟或氢原子,X是氟和/或氯原子,条件是至少 一个X是氟原子,n是1至10的整数,在约10至约200℃的温度下
    • 8. 发明授权
    • Process for preparing 3,5-difluoroaniline
    • 制备3,5-二氟苯胺的方法
    • US5294742A
    • 1994-03-15
    • US032986
    • 1993-02-18
    • Thomas SchachTheodor Papenfuhs
    • Thomas SchachTheodor Papenfuhs
    • B01J23/44C07B61/00C07C17/00C07C17/093C07C25/13C07C205/12C07C209/36C07C211/52
    • C07C209/365C07C17/093C07C201/12
    • Process for preparing 3,5-difluoroaniline, wherein(1) 2,4,5-trichloronitrobenzene is reacted with an alkali metal fluoride in the presence or absence of a polar aprotic solvent at temperatures of about 100.degree. C. to about 250.degree. C., and, after filtering off precipitated salts and fractional distillation of the crude solution,(2) the resulting 5-chloro-2,4-difluoronitrobenzene is chlorinated with denitration to give 1,3-dichloro-4,6-difluorobenzene in the absence of a Lewis acid or of another chlorination catalyst, using anhydrous chlorine gas at temperatures of about 80.degree. to about 250.degree. C., and(3) this compound is nitrated to give 2,6-dichloro-3,5-difluoronitrobenzene in oleum with mixed acid (sulfuric acid/nitric acid) at temperatures of about 15.degree. to about 80.degree. C., and(4) this compound is reduced with hydrogen in the presence of palladium as catalyst and in the presence of an inorganic or organic base at temperatures of about 40.degree. to about 250.degree. C.
    • 制备3,5-二氟苯胺的方法,其中(1)在约100℃至约250℃的温度下,在极性非质子溶剂存在或不存在下,将2,4,5-三氯硝基苯与碱金属氟化物反应 在过滤沉淀的盐并分解粗溶液后,(2)将所得的5-氯-2,4-二氟硝基苯用脱硝进行氯化,得到1,3-二氯-4,6-二氟苯 在约80℃至约250℃的温度下使用无水氯气,并且(3)将该化合物硝化,得到2,6-二氯-3,5-二氟硝基苯 在约15℃至约80℃的温度下使用混合酸(硫酸/硝酸)的发烟硫酸,和(4)该化合物在钯作为催化剂存在下并在无机或有机物存在下用氢还原 碱在约40度至约2℃的温度下进行 50摄氏度
    • 9. 发明授权
    • 2-chloro-5-fluoro-4-morpholinonitrobenzene and
2-chloro-5-fluoro-4-morpholinoaniline
    • 2-氯-5-氟-4-吗啉代硝基苯和2-氯-5-氟-4-吗啉代苯胺
    • US5990309A
    • 1999-11-23
    • US272839
    • 1999-03-19
    • Thomas SchachTheodor Papenfuhs
    • Thomas SchachTheodor Papenfuhs
    • C07D295/06C07B61/00C07C269/00C07C269/04C07C271/28C07D295/073C07D295/135C07D295/04
    • C07D295/073C07C269/00C07C269/04C07D295/135
    • The present invention relates to a process for the preparation of N-carboxyalkyl-3-fluoro-4-dialkylaminoanilines, which comprises reacting, in a first step, an ortho-nitrochlorobenzene of the formula (1) in which X is Cl or F, with a secondary amine of the formula (2) HNR.sup.1 R.sup.2, in which R.sup.1 and R.sup.2, independently of one another, are identical or different and are an alkyl radical having from 1 to 10 carbon atoms or, together with the N atom to which they are bonded, form a ring having from 3 to 7 members, in the presence of a base in the presence or absence of a solvent at from -10 to 120.degree. C., reacting, in a second step, the 2-chloro-4-dialkylamino-5-fluoronitrobenzene with hydrogen at from 30 to 150.degree. C. and from 1 to 100 bar in the presence of a base and a noble-metal catalyst and, in a third step, extracting the 3-fluoro-4-dialkylaminoaniline from the reaction mixture using an aqueous solution of an acid as a salt dissolved in water, removing the aqueous phase and reacting the 3-fluoro-4-dialkylaminoaniline salt, dissolved in water, with a chloroformate of the formula (3) ClCO.sub.2 R.sup.3, in which R.sup.3 is an alkyl radical having from 1 to 10 carbon atoms or an aralkyl radical having from 7 to 20 carbon atoms, at from 0 to 100.degree. C. in the presence of a basic compound.
    • 本发明涉及N-羧基烷基-3-氟-4-二烷基氨基苯胺的制备方法,其包括在第一步中使式(1)的邻硝基氯苯(其中X为Cl或F) 与式(2)HNR1R2的仲胺,其中R 1和R 2彼此独立地相同或不同,并且是具有1至10个碳原子的烷基或与它们相同的N原子 在存在或不存在溶剂的情况下,在-10至120℃下,在碱的存在下形成具有3至7个成员的环,在第二步中,将2-氯-4- 二烷基氨基-5-氟硝基苯,在碱和贵金属催化剂的存在下,在30至150℃和1至100巴的氢气下进行,并且在第三步骤中,将3-氟-4-二烷基氨基苯胺从 所述反应混合物使用溶于水的盐的酸的水溶液,除去所述水相并使所述3-氟 - (3)ClCO 2 R 3的氯甲酸酯(其中R 3是具有1至10个碳原子的烷基或具有7至20个碳原子的芳烷基)溶于水中的4-氟-4-二烷基氨基苯胺盐, 在碱性化合物的存在下0至100℃。
    • 10. 发明授权
    • Process for the preparation of aromatic fluoro compounds
    • 芳香族氟化合物的制备方法
    • US5498807A
    • 1996-03-12
    • US336474
    • 1994-11-09
    • Thomas SchachTheodor Papenfuhs
    • Thomas SchachTheodor Papenfuhs
    • C07B39/00C07C17/23C07D213/61C07C25/13
    • C07D213/61C07B39/00C07C17/23
    • The invention relates to a process for the preparation of aromatic fluoro compounds of the formula IF.sub.n ArR.sup.1 R.sup.2 R.sup.3 (I)in which Ar is phenyl, naphthyl or pyridyl, R.sup.1, R.sup.2 and R.sup.3 independently of one another are hydrogen, halide, (C.sub.1 -C.sub.4)-alkyl, phenyl, NR.sub.2, OR, CN, COH or COR, where R is hydrogen or (C.sub.1 -C.sub.6)-alkyl, and n=1, 2, 3, 4 or 5,which comprises reacting aromatic fluoro compounds of the formula IIX.sub.m F.sub.n ArR.sup.1 R.sup.2 R.sup.3 (II)in which Ar, R.sup.1, R.sup.2, R.sup.3 and n have the abovementioned meaning, each X is a chlorine or bromine atom and m=1, 2, 3, 4 or 5, with hydrogen in the presence of a palladium catalyst, a water-insoluble amine which also does not form water-soluble hydrohalides, and if desired an inert solvent.
    • 本发明涉及制备式I FnArR 1 R 2 R 3(I)的芳族氟化合物的方法,其中Ar是苯基,萘基或吡啶基,R 1,R 2和R 3彼此独立地是氢,卤素,(C 1 -C 4) - 烷基,苯基,NR 2,OR,CN,COH或COR,其中R是氢或(C 1 -C 6) - 烷基,n = 1,2,3,4或5,其包括使式 II,其中Ar,R 1,R 2,R 3和n具有上述含义的XmFnArR1R2R3(II),每个X是氯或溴原子,m = 1,2,3,4或5,在钯的存在下, 催化剂,也不形成水溶性氢卤酸盐的水不溶性胺,以及如果需要,还可使用惰性溶剂。