CAS: 624-18-0; 1,4-Diaminobenzene Dihydrochloride

上下游产品

CAS号7647-01-0 盐酸 | CAS号35008-62-9 N-(4-ISOTHI°CYA... | CAS号100-22-1 N,N,N',N'-四甲基对苯二胺 | CAS号100-25-4 对二硝基苯 | CAS号15165-86-3 h3b*nh2c6h4-4-n... | CAS号17625-83-1 4-氨基苯甲酰苯胺 | CAS号5467-04-9 N,N"-(1,4-亚苯基)二苯甲酰胺 | CAS号119516-83-5 对苯二胺-D4 | CAS号19201-32-2 N-(2-Aminoethyl... | CAS号18996-77-5 1-N,1-N,4-N,4-N... | CAS号6976-08-5 2-[4-(diaminome... | CAS号92492-55-2 4-chloro-N-[4-(...

专利信息

专利号:US-6235871-B1
优先权日:1997-12-03
标题:Synthesis of oligoarylamines, and uses and reagents related thereto
发明人：SINGER ROBERT A; SADIGHI JOSEPH P; BUCHWALD STEPHEN L; MACKEWITZ THOMAS
权利人:MASSACHUSETTS INST TECHNOLOGY
摘要:The transition metal-catalyzed amination of aryl halides, in conjunction with an orthogonal protective group scheme, forms the basis of two routes to oligoaniline precursors. The oligoaniline precursors are soluble in a variety of common organic solvents, and are easily converted to the deprotected oligoanilines. The method allows the preparation of oligoanilines of even or odd chain lengths, and the incorporation of a variety of functional groups into the oligomers. Polyanilines of low polydispersity can also be prepared by this method.

专利号:US-5025107-A
优先权日:1988-02-09
标题:Process for coproduction of arylene diamine dihalides and alkyl halides
发明人：CHAMBERLIN KIM S
权利人:EASTMAN KODAK CO
摘要:Disclosed is a process for the preparation of bis-acylamido aromatic compounds by reacting certain arylene dihalides with certain arylene dihalides in the presence of a copper catalyst. The process may be utilized in the synthesis of arylenediamines.

专利号:WO-9928290-A1
优先权日:1997-12-03
标 题:Synthesis of oligoarylamines, and uses and reagents related thereto

专利号:US-10731038-B2
优先权日:2016-06-23
标题 :(Dis)symmetric azomethine-type direct dye comprising at least one pyrazolopyridine unit, process for dyeing keratin fibers using this dye
发明人：SABELLE STÉPHANE; BLAIS STÉPHANE; FADLI AZIZ
权利人:OREAL
摘要:The subject of the present invention is symmetric or dissymetric azomethine direct dyes comprising at least one pyrazolopyridine unit of formula (I), a composition comprising said dyes, a process for treating keratin fibers using said dyes, a process for preparing these compounds, synthesis intermediates and a kit. In which formula (I) X, Y 1 , Y 2 , Z 1 , and R 1 to R 5 are as defined in the description.

专利号:US-5721280-A
优先权日:1996-10-07
标 题 :Method for depolymerizing polyimides and recovering reagents therefrom
发明人：WETZEL JOSEPH RICHARD; CARUSO ANDREW JAMES
权利人:GEN ELECTRIC
摘要:Polyimides, especially thermoset polyimides such as those prepared by the reaction of p-phenylenediamine with 4,4'-hexafluoroisopropylidenebis(phthalic anhydride) and nadic ester, are converted to monomers which may be recycled for polyimide synthesis by heating with a solution of an alkali metal hydroxide, such as lithium hydroxide or sodium hydroxide, in a dipolar aprotic solvent such as N-methylpyrrolidone. The products are the diamine and the tetracarboxylic acid alkali metal salt corresponding to the dianhydride.

专利号:WO-2006032879-A2
优先权日:2004-09-23
标 题:Methods of chemical synthesis and purification of diaminophenothiazinium compounds including methylthioninium chloride (mtc)