2 7-anthraquinone sulfonic acid coupling

images 2 7-anthraquinone sulfonic acid coupling

The material to be dyed can also be pre-treated with one of the aforesaid acid-binding agents, subsequently treated with a solution or paste of the dyestuif and, finally, fixed at an elevated temperature as described above. Council Of Europe Publishing; Chem Ber. Nat Prod Bioprospect. The dyeings and prints obtainable with the new dyestuffs on cellulosic material are, in general, distinguished by good to very good fastness properties, especially by excellent fastness to wet processing, such as to washing to boiling soda and furthermore to water, to rubbing and brushing, to light and in some instances to chlorine and to peroxide.

  • Video: 2 7-anthraquinone sulfonic acid coupling Diels Alder reaction - synthetic applications

    Anthraquinonesulfonic acid (AQ2S) is A Novel Neurotherapeutic Agent. T C Jackson;, J D Verrier; & P M Kochanek. Cell Death & Disease. 1-Amino(substituted)amino anthraquinonesulphonic acids of bromamine acid with aromatic or cycloaliphatic amines, by an Ullmann reaction (60), greenish blue dyes 61, 62 and C.I. Acid Violet 42, C.I. [ [] ( 63). 1-aminobenzenesu1phonic acid 2alfimo-5hyihroxynaphthalenesu1- A. reaction of 1-aminobromo-anthraquinone 2 sulphonic acid with an excess of 4 .
    In the next step we tried to introduce a tetrazolyl moiety at position 2 starting from the cyano derivative 9 using two different previously described approaches [ 62 — 63 ].

    The temperature is increased, while stirring, for about 5 to 10 C. Dyeings and prints on synthetic polyamide fabrics are distinguished by very good fastness to water, washing and light whereas dyeings and prints on synthetic polyester materials, particularly on polyethylene terephthalate, exhibit good fastness to sublimation, to washing and to light.

    Structures of the anthraquinone derivatives Reactive Blue 2 RB-2 and bromaminic acid sodium salt.

    Reactive disazo dyes containing fluoro-chloropyrimidyl groups and vinyl sulfonyl group. Bluis red; 93 -do l-aminhydroxynaphthalene4, fi-disulphonic acid.

    images 2 7-anthraquinone sulfonic acid coupling
    Los movies addon
    Similar dyestufls are obtained by proceeding as indicated above, but using, instead of 60 parts of 4'-amino- 2 acetylaminophenyl- l' azo naphthalene- 2 -3,6,8- trisulphonic acid sodium salt, corresponding quantities of the aminoazo dyestufis obtained from the amino compounds listed in the following table in column 2, and the coupling components given in column 3 in conventional manner by diazotization and coupling in an acetic acid medium, and by acylating with 2,3-dichloroquinoxalinecarboxylic acid chloride.

    When a cellulose fabric is printed with a printing paste containing per kilogram 15 grams of the dyestuif, g. Gisler M, inventor. Acknowledgments E. A further object is the provision of new dyestuffs which exhibit outstanding wet fastness properties when dyes or printed on OH-group containing materials according to methods known for fibre reactive dyestuffs.

    A dyestuff of the formula 6. These are worked up according to conventional techniques and with the addition of known auxiliaries into a dyestutf dispersion and used as such in the dyeor padding-liquor or in a printing paste.

    New 2-aminopyridine based acid anthraquinone dyes have been synthesized by condensation of bromamine acid with 2-aminopyridine to produce 1-amino(2- amino pyridinyl)anthraquinonesulfonic acid, which is coupled with various naphthalene based acid coupling components References (7).

    9,Anthraquinone-2,7-disulfonic acid (AQDS) is considered a benchmark (3, 16) Huskinson et al.

    images 2 7-anthraquinone sulfonic acid coupling

    first coupled AQDS, as a negative electrolyte, and . (31) Given that the chemical shift of an aryl sulfonic acid is 11–12 ppm.

    images 2 7-anthraquinone sulfonic acid coupling

    B 9,Anthraquinonesulfonic acid sodium salt hydrate, 97% (dry wt.), water ca % C14H7NaO5S•xH2O A Methanesulfonic acid, 98+%.
    Verfahren zur Herstellung von Derivaten des alfa Aminoanthrachinons. Stirring is continued until free amino groups of the starting materials are no longer detectable. Dyestuffs in which the radical of the Formula II is directly linked with F can be built up in the series of azo compounds for example by diazotizing an aminoaryl compound which contains the aryl nucleus directly linked With the 5- or 6-membered nucleus A of the compound of the general Formula II via a carbon-carbon bond, and possibly coupling with azo components.

    Justus Liebigs Ann Chem. Trends Biochem Sci.

    images 2 7-anthraquinone sulfonic acid coupling
    2 7-anthraquinone sulfonic acid coupling
    Verfahren zur Herstellung von Anthrachinonderivaten.

    For purification, the reactive dyestufi thus obtained can be redissolved in parts of water of C. A further object is the provision of new dyestuffs which exhibit outstanding wet fastness properties when dyes or printed on OH-group containing materials according to methods known for fibre reactive dyestuffs.

    The final step of the reaction can easily be detected from the amount of soda-lye consumed and from determination of free amino groups.

    Video: 2 7-anthraquinone sulfonic acid coupling Tosylation of Alcohols - TsCl Tosyl Chloride - Alkyl Tosylate

    US B2. After fixation the dyed material is rinsed hot and, if required, finally soaped, thereby removing insufficiently fixed dyestuff residues.

    Bromaminic acid (1-aminobromoanthraquinonesulfonic acid) is an. used to prepare the corresponding 2-carbaldehyde 7, the 2-carboxylic acid 8, and The reaction was optimized regarding the amount of potassium.

    7. Scheme 4. Mechanism of the amination reaction. Moreover, 1 was prepared by reaction of anthraquinonesulphonic acid or its sulfonate derivatives with.

    the Pd coupling between ethynylanthraquinone and . Dibenzyl Phosphate (7). 2-Anthraquinone sulfonic acid sodium salt.
    However, introduction of a bromine or a hydroxymethyl residue in position 2 of 1-aminoanthraquinone was possible following published procedures [ 56 — 57 ] see below. The product dyes materials from cotton and regenerated cellulose, wool or synthetic polyamide fibres clear bluish red shades of good fastness to wet processing, to rubbing and to light.

    Reddish yellow. In fact, bromaminic acid is one of the most utilized intermediates for the synthesis of AQ derivatives, including acid dyes and reactive dyes, through replacement of the C4-bromine atom by an ar alkylamino residue [ 49 ].

    The radical F may contain the substituents customary for the dyestuffs present in each case, such as sulfonic acid, carboxylic acid, optionally substituted sulfonamide, sulfone, alkylamino, aralkylamino, arylamino, acylamino, nitro, cyano, halogeno, hydroxy, alkoxy, azo groupings and the like.

    Wilson J E.

    images 2 7-anthraquinone sulfonic acid coupling
    AQ derivatives can also exert a variety of pharmacological activities including laxative, anti-inflammatory [ 20 — 21 ], antitumor [ 22 — 23 ], antifungal [ 24 ], antiviral [ 25 ], and blood platelet inhibitory effects [ 26 — 28 ].

    After filtering oif with suction, washing with a dilute sodium hydrochloride solution and drying at " C.

    For printing materials containing hydroxyl groups, a printing paste is used consisting of the dyestuif solution, a thickening agent, such as sodium alginate, and a compound having alkaline reaction or dissociating alkali on heating, such as sodium carbonate, sodium phosphate, potassium carbonate, potassium acetate or sodium and potassium bicarbonate, the printed material is rinsed and, if desired, finally soaped.

    Verfahren zur Herstellung von Derivaten des alfa Aminoanthrachinons. At the same time the pH of the reaction mixture is kept at about 6. Textile materials containing amide groups such as Wool, silk, synthetic polyamide and polyurethane fibres are in general dyed in the acidic to neutral range according to the dyeing methods conventionally used for this purpose whereby a final increase of the pH value of the dyebath to, for example pH 6.