2 edition of On some derivatives of anthraquinone found in the catalog.
On some derivatives of anthraquinone
A. G. Perkin
From the Transactions of the Chemical Society, Nov.1888, Vol.LIII.
|Other titles||Researches in organic chemistry., Transactions of the Chemical Society.|
|Statement||by A.G. Perkin and W.H. Perkin.|
|Contributions||Perkin, W. H. 1860-1929., Chemical Society (Great Britain)|
|The Physical Object|
|Pagination||p. -844 ;|
|Number of Pages||844|
Calculus I or needing a refresher in some of the early topics in calculus. I’ve tried to make these notes as self contained as possible and so all the information needed to read through them is either from an Algebra or Trig class or contained in other sections of the Size: 2MB. Anthraquinone (AQ) has been used in electron transfer studies in DNA. The focus of this dissertation is the synthesis of conjugates between AQ derivatives and 2’-deoxyadenosine (dA), which can be used to induce adenine oxidation in DNA. Different AQ derivatives were attached to dA via ethynyl or ethanyl linkers. If incorporated into DNA, these short linkers should enable Author: Reham A. I. Abou-Elkhair.
Anthraquinone dye, any of a group of organic dyes having molecular structures based upon that of anthraquinone. The group is subdivided according to the methods best suited to their application to various fibres. Anthraquinone acid dyes contain sulfonic acid . 1. A method was developed for the synthesis of the acetylenic, including the ethynyl, derivatives of anthraquinones by oxidizing acetylenylanthracenes with CrO3 in AcOH. 2. The ethynylanthracenes are reactive acetylenic components in the condensation with aryl halides and carboxylic acid chlorides in the presence of Pd and Cu catalysts. A method was Cited by: 5.
Anthraquinone, also called anthracenedione or dioxoanthracene is an aromatic organic compound with formula C 14 H 8 O l isomers are possible, each of which can be viewed as a quinone derivative. The term anthraquinone, however, almost invariably refers to one specific isomer, 9,anthraquinone (IUPAC: 9,dioxoanthracene) wherein the keto groups . Some Anthraquinones containing drugs and their precautions Slide 3: Introduction Over the ages anthraquinones have been used for their purgative action in the treatment of constipation, Purgative drugs are those used to either lubricate the intestines or stimulate peristalsis movement, mainly indicated for constipation.
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A Study of 1-hydroxylamino-anthraquinone and Some of Its Derivatives Paperback – Janu by Walter Herman Beisler (Author) See all 11 formats and editions Hide other formats and editions. Price New from Used from Hardcover "Please retry" $ $ Author: Walter Herman Beisler.
Continue to access RSC content when you are not at your institution. Follow our step-by-step guide. Anthraquinone derivatives.
Anthraquinone derivatives with a laxative effect can be found in a number of plants: Senna leaves or fruits, rhubarb root, alder tree bark, cascara bark and aloe (see Chapter ).
The laxative effect is elicited by direct stimulation of the musculature of the colon. Anthraquinone derivatives are present as glycosides. QUANTUM YIELDS OF TRIPLET FORMATION OF SOME DERIVATIVES OF ANTHRAQUINONE. James McVie. Chemistry Department, Paisley College of Technology, High Street.
Paisley. PA1 2BE. Scotland. U.K. Search for more papers by this author. Roy S. Sinclair. Chemistry Department, Paisley College of Technology, High Street. Paisley. PA1 by: Those anthraquinone dyes that can be reduced to alkaline sol leuco (vat) derivative that has affinity for fibers, & which can be reoxidized to the dye, are known as anthraquinone vat dyes.
They are largely used on cotton, rayon, & silk, & have excellent properties of color and fastness. anthraquinone derivatives from commercially avail-able phthalic anhydride and substituted benzene usingtheinexpensive,non-toxic,andeasilyavailable hodoffersseveraladvantages includinghighyieldofproducts,shortreactiontimes, andeaseofworkupprocedure.
Quantum yields of triplet formation of some derivatives of anthraquinone Article in Photochemistry and Photobiology 29(2) - January with.
Spectrofluorometric study of complexation of some amino derivatives of 9,anthraquinone with β-cyclodextrin. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy62 (), DOI: /ed by: some water or alkali present in the solvent, the second reductive wave of anthraquinone at V disappears,just as the quiniome methide wave at V disappeared.
When two protons are transferred, this mechanism produces a ß-aryl ether dimer with the OH group on C-a replaced by hydrogen – effectively a two electron Size: KB. Application of density functional calculations to compute electrochemical properties such as redox windows, effect of substitution by electron donating and electron withdrawing groups on redox windows, and solvation free energies for ∼50 anthraquinone (AQ) derivatives are presented because of their potential as anolytes in all-organic redox flow by: Anthraquinone, also called 9,anthraquinone, the most important quinone derivative of anthracene and the parent substance of a large class of dyes and pigments.
It is prepared commercially by oxidation of anthracene or condensation of benzene and phthalic anhydride, followed by dehydration of the condensation product.
Anthraquinone (AQ) has been used in electron transfer studies in DNA. The focus of this. dissertation is the synthesis of conjugates between AQ derivatives and 2’-deoxyadenosine (dA), which can be used to induce adenine oxidation in DNA.
Mechanism of DNA‐binding of some aminoalkylamino‐derivatives of anthraquinone and naphthacenequinone. PLUMBRIDGE. Department of Pharmacy, University of Manchester, Manchester M13 9PL.
Sandoz Products Ltd., Feltham, Middlesex TW13 4EP, U.K. Search for more papers by this by: Solution Luminescence of Anthraquinone, Naphthoquinone, and Some Derivatives at Room Temperature Bill S.
Yamanashi and David M. Hercules Applied Spectroscopy 4, Cited by: 6. epidermis. They can be found in some Aloe vera preparations. The main anthraquinone derivative of Aloe ’s latex is aloin. This is a mixture of two diastereomers, termed aloin A and aloin B (Sehgal, Winters, Scott, David, et al.
; see Figure ). Aloin A, also called barbaloin, is the major C-glycoside anthraquinone in Aloe ’s latex. Natural pigments that are derivatives of anthraquinone are found in plants (e.g. aloe latex, senna and rhubarb), fungi, lichens and some insects (HSDB, ).
Natural pigments that are derivatives of anthraquinone are found in plants (e.g. aloe latex, senna and rhubarb), fungi, lichens and some insects (HSDB, ).
Occupational exposure. Occupational exposure to anthraquinone can occur during its production, its use in the manufacture of other chemicals or its direct Size: KB. Anthraquinones are organic compounds found in some plants. Chemically they come in the form of simple anthrones or bianthrones.
Anthraquinones are used for dyes, pigments as well as for medicinal purposes. A review on anthraquinones isolated from Cassia species and their applications some plants, fungi, lichens, and insects, where they serve as a basic skeleton for their pigments.
Natural natural anthraquinone derivatives as reactive oxygen species generators to. A type II polyketide synthase is responsible for anthraquinone biosynthesis in the bacterium Photorhabdus luminescens. Chorismate, formed by isochorismate synthase in the shikimate pathway, is an important precursor of anthraquinones in Morinda citrifolia.
Test for anthraquinones in natural extracts. 1. Stilbene derivatives 2. Benzidine derivatives 3. Benzthiazole, benzoxazole and benziminazole derivatives 4.
Coumarins 5. Pyrazolines 6. Other types Some Specific Applications of Optical Whitening Agents 1. Soaps and detergents 2.
Textile applications Natural dyes for Food NIIR Project Consultancy Services (NPCS) 3/8. The antiviral activities of some naturally occurring anthraquinones bianthrones, and hypericin derivatives were compared by the end-point CPE (viral cytopathic effects) method and plaque assays.
Under optimal conditions of exposure to light, hypericin, 7,7′-dichlorohypericin and 5,7-dichloroemodin exhibited strong inhibitory activity against HSV-1 (herpes simplex virus Cited by: In connection with the synthesis of disperse dyes for polyester fibre, 5, 6-benzanthraquinone derivatives were prepared and the effect of annellation on some properties of 1, 4-dihydroxy- 1, 4-diamino- and 1, 4-dimethylamino-anthraquinone was studied.1, 4-Dihydroxy-5, 6-benzanthraquinones (1) were synthesized from 1, 2-naphthalenedicarboxylic anhydride and Cited by: 3.