CAS: 488-48-2; 2,3,5,6-Tetrabromocyclohexa-2,5-Diene-1,4-Dione

相似化合物

19643-45-9 1633-14-3 3958-82-5

上下游产品

2,6-dibromo-4-nitrophenol 4-nitro-phenol 4-Fluorophenol Pentabromophenol2,5-bis-aziridin-1-yl-3,6-dibromo-[1,4]benzoquinone 1,2-dimesityl-propenone 2,3,5,6-tetrabromohydroquinone 2-bromo-1,3,4,5,6-pentaphenyl-cyclohexa-2,5-diene-1,4-diol

对硝基苯酚置于溴,硝酸体系中,化学反应生成 四溴对苯醌
参考文献:Halogenation. Xxii. The Action Of Bromine And Nitric Acid On Organic Compounds. Preparation Of Nitrosyl Tribromide And The Formation Of Tetrabromoquinone
标题:Halogenation. Xxii. The Action Of Bromine And Nitric Acid On Organic Compounds. Preparation Of Nitrosyl Tribromide And The Formation Of Tetrabromoquinone
摘要:
DOI:10.1021/ja01655A025

专利信息

专利号:US-4895954-A
优先权日:1986-07-26
标题 :Precursors for synthesis of triphendioxazine dyestuffs
发明人：SCHWAIGER GUENTHER; SPRINGER HARTMUT; HELMLING WALTER
权利人:HOECHST AG
摘要:Water-soluble triphendioxazine compounds which have fiber-reactive properties as dyestuffs, which afford deep and fast dyeings on fiber materials, such as wool and, in particular, cellulose, and which correspond to the formula (1) ##STR1## in which: n is the number 0 or 1; n Y is the vinyl group or an ethyl group containing, in β-position, a substituent which can be eliminated by means of an alkali; n Q 1 and Q 2 both represent a benzotriazole radical which can also be additionally substituted in the benzene nucleus by alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, halogen, carboxy or sulfo; n B is --O--, --S--, --NH-- or --N(R')-- wherein R' is optionally substituted alkyl having 1 to 6 carbon atoms; n W 1 and W 2 both represent a divalent, optionally substituted aliphatic, cycloaliphatic, aliphatic-cycloaliphatic, araliphatic or aromatic-carbocyclic radical, it being possible for the aliphatic radicals to be interrupted by hetero groups --O--, --S--, --SO 2 --, --CO--, 1,4-piperidino, --NH-- and/or --N(R o )-- in which R o is optionally substituted alkyl having 1 to 6 carbon atoms or alkanoyl having 2 to 5 carbon atoms, and/or for aliphatic and aryl radicals to be attached to one another through such a hetero group; n R is hydrogen, alkyl having 1 to 6 carbon atoms, alkoxy having 1 to 6 carbon atoms, halogen, carboxyl or sulfo; n E is hydrogen, sulfo, carboxyl, a group --SO 2 --Y as defined above or an optionally substituted sulfonamide group; and n X 1 and X 2 are both hydrogen or halogen, cycloalkyl, alkoxy, aryloxy, aryl or another substituent; n and at least one carboxy, sulfo or sulfato group is present in the molecule (1), n and pre-products of those triphendioxazine compounds, of the general formula ##STR2## in which K is an amino or nitro group, Y' is β-hydroxyethyl or defined as for Y, W has one of the meanings of W 1 , and E' is hydrogen, sulfo, carboxy or a group of the formula --SO 2 --Y' defined above, or an optionally substituted sulfonamide group, and R, B and R* have the above meanings.

专利号:US-2009093521-A1
优先权日:2005-06-14
标 题 :2, 5-Bis-Diamine [1,4] Benzoquinone-Derivatives
发明人：BOLOGNESI MARIA LAURA; BANZI RITA; MINARINI ANNA; MELCHIORRE CARLO
权利人:BOLOGNESI MARIA LAURA; BANZI RITA; MINARINI ANNA; MELCHIORRE CARLO
摘要:Synthesis of 2,5-bis-diamine-[1,4]benzoquinonic derivatives having the general formula (I), products and intermediates of said synthesis; the synthesis involves the use of p-benzoquinones having the general formula (IX) and diamines having the general formula (XI).

专利号:EP-3396028-B1
优先权日:2014-02-24
标 题 :Direct electrochemical synthesis of doped conductive polymers on metal alloys

专利号:CN-86102496-B
优先权日:1985-09-07
标题:Synthesis of Tetrabromohydroquinone by Sectional Temperature Control

专利号:WO-9743289-A1
优先权日:1996-05-17
标 题 :Large synthetic compounds based on electron donor and electron acceptor interactions
发明人：IVERSON BRENT L; LOKEY R SCOTT
权利人:UNIV TEXAS; IVERSON BRENT L; LOKEY R SCOTT
摘要:Using predetermined electron donor-electron acceptor interactions, the present invention provides for the design, synthesis and use of compounds that are capable of interacting with, competing with and even mimicking biological macromolecules. The compounds may be related structurally and/or functionally to a wide variety of biologicals including proteins, nucleic acids, lipids, carbohydrates, steroids or other compounds. In one embodiment, alternating electron donor-acceptor molecules (AEDAMers) are employed to create compounds having higher order structures including helices and pleats. These compounds may be used in a myriad of different applications, which include roles as inert carriers, antigens, biologically inactive stabilizers, drugs and enzymes. Also contemplated are combinatorial processes for creating large libraries permitting rapid screening for desired structure and/or function.

专利号:CN-105732488-B
优先权日:2016-03-28
标 题 :A kind of method of pyridine-2-formic acid decarboxylation synthesis 2-(2-chloroethoxy) ethoxypyridine ether compound