CAS: 22287-56-5; 4,4'-Bis((4-Chlorophenyl)Sulfonyl)-1,1'-Biphenyl

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CAS号92-52-4 联苯 | CAS号108-90-7 氯苯 | CAS号98-66-8 4-氯苯磺酸 | CAS号98-60-2 对氯苯磺酰氯 | CAS号37615-80-8 4-[4-[4-(4-hydr...

📜联苯,4-氯苯磺酸置于三氧化硫,三氟乙酸体系中,化学反应 5.0H,以15%的收率获得联-(4-氯二苯砜)
参考文献: Process For The Manufacture Of Dihalodiphenylsulfones Starting From Organic Acids[fr] Procédé Pour La Fabrication De Dihalogénodiphénylsulfones à Partir D'Acides Organiques
标题: Process For The Manufacture Of Dihalodiphenylsulfones Starting From Organic Acids[fr] Procédé Pour La Fabrication De Dihalogénodiphénylsulfones à Partir D'Acides Organiques
摘要:一种制备二卤代二苯基砜的方法,例如4,4'-二氯二苯基砜或4,4'-双(4-氯苯基砜)联苯,具有高选择性,低温和无毒试剂的特点,通过将至少一种酸,三氧化硫和至少一种卤代苯反应在一起来实现.该发明的方法特别适用于制造4,4'-二氯二苯基砜.

专利信息

专利号:US-5276196-A
优先权日:1992-03-09
标题:Synthesis of bis(haloarylsulfonyl) aromatics
发明人：HOLBA ALBERT G; STRAW JIM J; HERD MEL D
权利人:PHILLIPS PETROLEUM CO
摘要:This invention relates to the synthesis of bis(haloarylsulfonyl) aromatic compounds and more specifically, bis(chlorophenylsulfonyl) aromatic compounds. Bis(chlorophenylsulfonyl) aromatic compounds and particularly 4,4'-bis(4-chlorophenylsulfonyl)biphenyl are frequently used as monomers and comonomers in making high temperature polymers which possess glass transition temperatures greater than 260 degrees C. A process has been developed wherein product of high purity and minimal iron contamination is produced by reacting haloarylsulfonyl halide with an aromatic compound in the presence of an appropriate catalyst with and without solvent.

专利号:US-5081306-A
优先权日:1989-04-25
标题:Synthesis of dihalobenzene disulfone compounds
发明人：KNOX DAVID E
权利人:AMOCO CORP
摘要:A process for producing dihalobenzene disulfone compounds, comprising reacting, in the presence of aluminum trichloride n a halobenzene sulfonyl halide of the formula ##STR1## wherein X and Y are halogen which may be the same or different, with a compound of the formula n n H - Q - H n n wherein Q is a divalent radical containing benzenoid unsaturation and the hydrogens are replaceable under electrophilic Friedel-Crafts reaction conditions, n in a solvent consisting essentially of about 1 to about 25 volume %, based on the solvent volume, of nitromethane and, correspondingly, about 99 to about 75 volume %, of a polar aliphatic halohydrocarbon, the total solvent volume employed being sufficient to provide between about 0.5 and about 1.5 moles of nitromethane per mole of aluminum trichloride, n thereby producing a dihalobenzene disulfone compound of the formula ##STR2##