CAS: 80-44-4; Butyl Benzenesulfonate

上下游产品

CAS号98-09-9 苯磺酰氯 | CAS号71-36-3 正丁醇 | CAS号90-10-8 N-甲基-N-苯基苯磺酰胺 | CAS号368-43-4 苯磺酰氟 | CAS号2698-11-5 lithium,butan-1... | CAS号1825-65-6 BUTOXYTRIMETHYL... | CAS号1860-27-1 (1-甲基乙氧基)-丁烷 | CAS号3508-98-3 Alpha-正丁基苯乙腈 | CAS号1129-65-3 1-苯基-1-己炔 | CAS号2294-72-6 5-十一炔 | CAS号123-72-8 正丁醛 | CAS号85389-86-2 7-butoxy-4-meth...

📜α,α-Diphenyl-O-(N-Methyl-N-Phenylsulfamyl)Benzyl Alcohol置于2,2,6,6-Tetramethylpiperidinyl-Lithium,水体系中,用 四氢呋喃 作为反应溶剂,化学反应 5.0H,反应生成 苯磺酸正丁酯
参考文献:Intermediacy Of O-Sulfonylium Arenide Ylides In The Reactions Of Arenesulfonyl Derivatives With Strong Bases: Insight Into The Puzzling Rearrangement Of N-Arylarenesulfonamides Into 2-Aminodiaryl Sulfones1
标题:Intermediacy Of O-Sulfonylium Arenide Ylides In The Reactions Of Arenesulfonyl Derivatives With Strong Bases: Insight Into The Puzzling Rearrangement Of N-Arylarenesulfonamides Into 2-Aminodiaryl Sulfones1
摘要:Benzenesulfonyl Derivatives,Phso(2)E,Such As Benzenesulfonyl Fluoride,Phenyl Benzenesulfonate,And N-Methyl-N-Phenylbenzenesulfonamide,Have Been Found To Undergo Ortho-Lithiation With Lithium 2,2,6,6-Tetramethylpiperidide (Ltmp) In Thf At-78 Degrees C. The Resulting Lithio Derivatives Undergo 1,3-Elimination Of Lie To Form The Transient O-Sulfonylium Benzenide. The Latter Ylide,Which May Be Stabilized By Its Carbenoid Character And Its Complexation With Lie,Can Be Trapped By Benzophenone Acting As A 1,3-Dipolarophile To Form The Adduct,3,3-Diphenyl-1,2-Benzoxathiole 1,1-Dioxide. The Alternative Formation Of The Latter Cyclic Sulfonate By Reaction Of The Initially Formed O-Lithio Derivative With Benzophenone And By Subsequent Cyclization Was Shown Not To occur. If Not Trapped With Benzophenone,Such An Ylide Decomposes Partly Into So2 And Benzyne And Then Undergoes Self-Condensation To Yield Poly(Phenylene-O,O'-Biphenylene Sulfones),O-Sulfonylium Benzenide Also Can Be Captured By Lithium Alkoxides,Either Present Adventitously Or Intentionally Added,To Generate The Corresponding Alkyl Benzenesulfonate. However,Such Alkoxides,Unaided By Ltmp,Are Themselves Unable To Extract An Ortho-Proton From Benzenesulfonyl Fluoride Or From N-Methyl-N-Phenylbenzenesulfonamide To Yield The Corresponding O-Lithio Derivative. With Benzenesulfonyl Fluoride The Lithium Alkoxide Can Also Form The Sulfonate Ester By Direct Substitution At The Sulfonyl Group. The Closson-Hellwinkel Rearrangement Of N-Methyl-N-Phenylbenzenesulfonamide Into O-(Methylamino)Diphenyl Sulfone By Rli Or Ltmp Is Reinterpreted As Proceeding By Way Of The 2-Lithio-Or 2,6-Dilithiobenzenesulfonyl Derivative Which Eliminates Lithium N-Methylanilide To Form The O-Sulfonylium Benzenide Or Its 6-Lithio Derivative. Attack Of The Latter Ylide,Acting As An Electrophile,Upon The Ortho-Position Of The Presumably Complexed Linmeph Then Consummates The Rearrangement.
DOI:10.1021/jo950727J

专利信息

专利号:US-10253165-B2
优先权日:2015-02-26
标 题 :Control of organic impurities in polycarbonate synthesis
发明人：BOJARSKI AARON DAVID; GARCIA AGUDO JORGE A
权利人:SABIC GLOBAL TECHNOLOGIES BV
摘要:Polymerization processes comprising melt polymerizing a carbonate and a dihydroxy compound in the presence of an amount of a beta organic catalyst so as to give rise to a polycarbonate product, wherein the amount of beta organic catalyst comprises at least one onium salt and also comprises triphenyl phosphonium oxide (TPPO), and wherein the TPPO represents less than about 0.3 weight % of the sum of the weights of the at least one onium salt and the TPPO in the amount of beta organic catalyst.

专利号:US-4352788-A
优先权日:1979-08-09
标题 :Derivatives of 2,4,6-triiodo-isophthalic acid, processes for their synthesis and X-ray contrasting materials containing these
发明人：FELDER ERNST; PITRE DAVIDE
权利人:BRACCO IND CHIMICA SPA
摘要:Compounds for use in non-ionic X-ray contrasting materials having the formula ##STR1## in which (H0) 2-3 alkyl is 1,3-dihydroxyisopropyl, 2,3-dihydroxypropyl or 1,3-dihydroxy-2-hydroxymethylisopropyl, n R is hydrogen or methyl, and n R 1 is an alkyl residue with 1 to 5 carbon atoms. n These compounds possess high water-solubility as well as excellent stability against hydrolysis. Methods for preparation and use of the compounds are also disclosed.

专利号:WO-2018191612-A1
优先权日:2017-04-14
标 题 :Synthesis of a phosphorous containing monomer and the incorporation in polycarbonate by interfacial polymerization thereof

专利号:US-2020048410-A1
优先权日:2017-04-14
标 题:Synthesis of a phosphorous containing monomer and the incorporation in polycarbonate by interfacial polymerization thereof

专利号:EP-3545018-B1
优先权日:2017-04-14
标 题:Synthesis of a phosphorous containing monomer and the incorporation in polycarbonate by interfacial polymerization thereof
发明人：CALVERAS JORDI
权利人:SABIC GLOBAL TECHNOLOGIES BV

专利号:EP-3545018-A1
优先权日:2017-04-14
标题 :Synthesis of a phosphorous containing monomer and the incorporation in polycarbonate by interfacial polymerization thereof