CAS: 1449-46-3; Benzyltriphenylphosphonium Bromide

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CAS号100-39-0 溴化苄 | CAS号603-35-0 三苯基膦 | CAS号100-44-7 氯化苄 | CAS号108-88-3 甲苯 | CAS号100-51-6 苯甲醇 | CAS号100-52-7 苯甲醛 | CAS号6399-81-1 三苯基膦氢溴酸盐 | CAS号791-28-6 三苯基氧化膦 | CAS号1106-05-4 Triphenyl-[2-me... | CAS号37167-62-7 alpha-溴苯基乙酸甲酯 | CAS号106325-78-4 5-[(Z)-2-phenyl... | CAS号109318-79-8 9-phenylnon-8-enal | CAS号35302-70-6 银松素单甲醚 | CAS号13041-70-8 反-4-溴二苯乙烯 | CAS号4714-24-3 4-溴均二苯乙烯 | CAS号143207-80-1 2-(2-phenylethy... | CAS号4714-21-0 4-甲基二苯乙烯 | CAS号41639-83-2 拉坦前列腺素(游离酸) | CAS号20111-34-6 1-methyl-4-(2-p...

苄基三丁基溴化铵置于1-丁基-3-甲基咪唑二(三氟甲基磺酰)酰亚胺体系中,用 乙腈 用作溶剂,化学反应生成三苯基苄基溴化膦
参考文献:氮与磷亲核试剂-改变亲核杂原子如何在双分子亲核取代过程中影响离子液体溶剂的作用†
标题:氮与磷亲核试剂-改变亲核杂原子如何在双分子亲核取代过程中影响离子液体溶剂的作用†
摘要:已研究了一系列氮和磷亲核试剂,以确定先前建立的离子液体溶剂是否对双分子亲核取代(s N2)反应随亲核中心的性质而变化.与吡啶相比,随着反应混合物中离子液体比例的增加,第15组三苯基亲核试剂与苄基溴的反应显示出速率常数的变化趋势.该结果表明,其他交互非常重要.当亲电试剂与三苯膦反应发生变化时,观测到的反应结果差异支持了这种假设.在三丁胺与苄基溴的反应中观测到新的离子液体溶剂效应,其平衡位置随反应混合物中离子液体的比例而变化.总体,提出的工作证明了考虑沿反应坐标的离子液体溶剂与物质之间所有可能的相互作用的重要性,并扩展了我们目前对离子液体溶剂作用的预测框架.这种理解很重要,因为它允许进一步发展将离子液体应用于制备化学的预测框架.
Doi:10.1039/c6Nj00721J

专利信息

专利号:US-9505733-B2
优先权日:2011-11-18
标题:Single step enantioselective process for the preparation of 3-substituted chiral phthalides
发明人：REDDY REKULA SANTOSH; NAGA CHITHANYA KIRAN INDUKURU; ARUMUGAM SUDALAI
权利人:COUNCIL SCIENT IND RES
摘要:The present invention discloses single step, highly enantioselective catalytic oxidative cyclization process for the synthesis of 3-substituted chiral phthalides. In particular, the invention discloses asymmetric synthesis of chiral phthalides via synergetic nitrile accelerated oxidative cyclization of o-cyano substituted aryl alkenes in high yield and enantiomeric excess (ee) in short reaction time. Also, disclosed herein is “one-potâ€? asymmetric synthesis of biologically important natural compounds having 3-substituted chiral phthalide structural framework in the molecule.

专利号:US-2008214386-A1
优先权日:2004-03-01
标题:Catalyst for Cyclic Carbonate Synthesis
发明人：TAKAHASHI TOSHIKAZU; WATAHIKI TSUTOMU; YASUDA HIROYUKI; SAKAKURA TOSHIYASU
权利人:TAKAHASHI TOSHIKAZU; WATAHIKI TSUTOMU; YASUDA HIROYUKI; SAKAKURA TOSHIYASU
摘要:Provided are a solid catalyst which gives a cyclic carbonate at a high yield and a high selectivity, which is stable and which may be readily separated after reaction; and a method of industrially advantageous, inexpensive and safe production of a cyclic carbonate by the use of the catalyst. The catalyst contains an inorganic solid substance having a surface modified with an ionic substance containing a Group 15 element; or contains an ionic substance containing a Group 15 element, and an inorganic solid substance. The modifying group for surface modification of an inorganic solid substance is an ionic substance containing a Group 15 element. The ionic substance containing a Group 15 element is at least one substance selected from organic phosphonium salts, organic ammonium salts, organic arsonium salts and organic antimonium salts.

专利号:EP-3143060-B1
优先权日:2014-05-12
标题 :Catalysts for the synthesis of oxazolidinone compounds

专利号:WO-2013028039-A2
优先权日:2011-08-24
标题:Method of regenerating a catalyst for synthesis of alkylene carbonate and/or alkylene glycol, and a method for producing alkylene carbonate and/or alkylene glycol

专利号:US-4980280-A
优先权日:1985-05-31
标 题:Conjugated polyene sterol derivatives as membrane probes
发明人：MORAND PETER; DREW JACINTA; SZABO ARTHUR G; PROULX PIERRE R
权利人:UNIV OTTAWA UNIVERSITE D OTTAW
摘要:The present invention relates to the synthesis of conjugated polyene sterol derivatives, the compounds obtained and to their use as fluorescent probes for cellular membranes. The fluorescent probes of the present invention resemble cholesterol both structurally and in amphipathic nature. The probes of the present invention have potential for use in determining cholesterol levels and cholesterol properties and cell membrane properties and can be applied to clinical assays and diagnoses involving cholesterol.

专利号:CN-103626657-A
优先权日:2012-08-23
标题:Synthesis of Sex Pheromone 9Z, 12E-Tetradecadien-1-ol Acetate of Indian Rice Borer