CAS: 106246-33-7; 4,4'-Methylenebis(3-Chloro-2,6-Diethylaniline)

相似化合物

13680-35-8 19900-72-2 61437-85-2

上下游产品

CAS号50-00-0 甲醛 | CAS号67330-62-5 3-氯-2,6-二乙基苯胺 | CAS号5266-85-3 2-甲基-6-异丙苯胺

4,4'-亚甲基双(2,6-二乙基苯胺)置于盐酸,双氧水体系中,用 水 用作溶剂,化学反应 3.25H,以99.3%的收率获得4,4'-亚甲基-双-(3-氯-2,6-二乙基苯胺)
参考文献:一种氯化烷基化的4,4'-亚甲基双苯胺类化合物苯环的绿色工艺
标题:一种氯化烷基化的4,4'-亚甲基双苯胺类化合物苯环的绿色工艺
摘要:一种氯化烷基化的4,4'‑亚甲基双苯胺类化合物苯环的环保工艺方法,采用质子酸‑盐酸作为氯正离子源,双氧水作为氧化剂,对底物的苯环氨基间位实施亲电取代反应,不需要使用液氯,硫酰氯等有毒有害物质.该方法具有工艺条件温和,安全可靠,氯原子利用率高,副产物仅有反应水,绿色环保等特点.而且可根据需要通过调整投料摩尔比方便地获得二取代或四取代产物,以底物"带有烷基化基团的4,4'‑亚甲基双苯胺类化合物"为基准,在最佳工艺条件下,苯环的氯化收率可达95%以上.

专利信息

专利号:US-6500904-B1
优先权日:2001-11-02
标 题:High molecular weight poly(imide)s and methods of synthesis thereof
发明人：HAYES ROBERT F
权利人:GEN ELECTRIC
摘要:A method for the synthesis of high molecular weight poly(imide)s comprising coupling poly(imide) precursors having complementary functional groups and a weight average molecular weight of less than about 50,000 Daltons to form high molecular weight poly (imides)s having a weight average molecular weight greater than 50,000 Daltons.

专利号:US-6096900-A
优先权日:1999-05-07
标 题 :Solventless preparation of phthalimides
发明人：NICK ROBERT JOSEPH; NELSON MARK ERIK; CARINGI JOSEPH JOHN; WILLIAMS DREW ELLIOT
权利人:GEN ELECTRIC
摘要:A method for the solventless synthesis of a phthalimide or phthalimide mixture is provided comprising contacting at least one amine reactant and at least one anhydride reactant in a solventless environment at a first temperature sufficient to allow the reactants to at least partially condense; and increasing the temperature to a second temperature sufficient to melt the reaction mixture, thereby allowing the reaction to go essentially to completion and form the reaction product.

专利号:US-11220480-B2
优先权日:2016-12-31
标题 :Synthesis of reactive intermediates for polyetherimides, and uses thereof
发明人：GUGGENHEIM THOMAS LINK; CHIONG HENDRICH; QUEVEDO SANCHEZ BERNABE; MISIEGO ARPA CARMEN ROCIO; RODRIGUEZ ORDONEZ JUAN JUSTINO; NIEVES REMACHA JAVIER
权利人:SHPP GLOBAL TECH BV
摘要:A method for producing a reactive intermediate composition, including: reacting a substituted phthalic anhydride of the formula (I) with a diamine of the formula H 2 N—R—NH 2 in the presence of an aromatic dianhydride in an amount of 10 to 50 mole percent based on the total moles of anhydride functionality in the reaction; wherein the reacting is conducted in an aprotic solvent in a reactor, under conditions effective to produce the reactive intermediate composition; and wherein X comprises a halogen or a nitro group, and R comprises a C 6-36 aromatic hydrocarbon group or a halogenated derivative thereof, a straight or branched chain C 2-20 alkylene or a halogenated derivative thereof, or a C 3-8 cycloalkylene or a halogenated derivative thereof.

专利号:US-6590108-B1
优先权日:2001-12-05
标题 :Methods for the preparation of dianhydrides
发明人：ODLE ROY RAY; GUGGENHEIM THOMAS LINK; SWATOS WILLIAM JAMES; VOLLMER MICHAEL J
权利人:GEN ELECTRIC
摘要:A method for the synthesis of a dianhydride comprises transimidation of bis (imide) (IV) n in the presence of a substituted phthalic anhydride or 4-substituted tetrahydrophthalic anhydride to yield dianhydride (V)

专利号:US-10351652-B2
优先权日:2015-06-15
标 题:Method for the synthesis of polymer carbodiimides with added cesium salts, polymer carbodiimides, and use thereof
发明人：LAUFER WILHELM; HERD OLIVER; SPERBER ROLF
权利人:LANXESS DEUTSCHLAND GMBH
摘要:The present invention relates to processes for producing polymeric carbodiimides by addition of cesium salts and to polymeric carbodiimides produced by this process and to the use thereof as a hydrolysis inhibitor, especially in polyurethane (PU)-based systems, preferably thermoplastic TPU, PU adhesives, PU casting resins, PU elastomers or PU foams.

专利号:US-2010093880-A1
优先权日:2006-12-20
标 题:Recycling cleavage of polyurethanes
发明人：BERGFELD MANFRED; KIEFFER ANDREAS
权利人:BERGFELD MANFRED; KIEFFER ANDREAS
摘要:A process is described for splitting polyurethanes and polyurethaneureas, in which the polymer is first reacted with gaseous or liquid secondary aliphatic or cycloaliphatic amines, the secondary urea formed, after removal with hydrogen chloride, is split to the isocyanate, and the polyols or polyamines also formed in the reaction are worked up and purified. It is possible by the process according to the invention to work up polyurethanes, polyurethaneureas, etc., of any origin, and to break them down into the starting materials, specifically the isocyanates, polyols or polyamines, to form starting materials in very high quality, which can be reused for the synthesis of any polyurethanes or polyureas. The invention further provides for the preparation of secondary bis-ureas from polyurethanes or polyurethaneureas or/and ureas.