Derivatives

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  • Preparation Of Biis-Thiourea Derivatives Case Study

    Bis-Thiourea Derivatives The mixture of heptanoyl chloride and ammonium thiocynate with 1,4-phenylene diamine appeared as homogeneous solution. White precipitate was formed immediately when the solution was filtered into the beaker containing ice cubes. Then, the precipitate was filtered again and rinsed by ethanol before being dried in the desiccator. The physical data of the synthesized bis-thiourea derivatives are shown in Table 4.1. Table 4.1: Physical data of synthesized thiourea…

    Words: 762 - Pages: 4
  • Synthesis Of 6-Deoxycellulose Derivatives Lab Report

    T. Heinze et. al. reported the synthesis of new 6-deoxy-6-pheylethylamino cellulose derivatives with DSamino 0.4-0.6 by nucleophilic displacement of cellulose tosylates (DSTos 0.74 and 1.29) with a racemic mixture of 1-phenylethylamine under homogeneous conditions, in DMF/H2O82, scheme 30. The optical properties of these deoxyamino cellulose derivatives was studied. A regioselective synthesis of 6-amino-6-deoxycellulose, 6-N-sulfonated, and 6-N-carboxymethylated deoxycellulose were…

    Words: 911 - Pages: 4
  • Multiple Choice Questions And Analysis: Fundamental Concepts Of Derivatives

    d d c c a b spot market derivative market no arbitrage Question 2 Fundamental concepts of derivative markets: What are derivatives? Derivatives can be defined as the instruments whose value depends on the value of underlying assets which may be a commodity, metal, money currency, any stock or indices. The main purpose of derivatives is to avoid risk. Major uses of derivatives Following are the major uses of derivatives Risk management and Financial engineering Derivatives are used to avoid risk…

    Words: 758 - Pages: 4
  • Methane-To-Methanol Reaction Report

    Compared to the straight optimization of a non-transition state system to a ground state, transition states are more numerically sensitive and take more time to calculate. To achieve this level of accuracy, we continuously modified second derivative (force constants and frequencies) calculation criteria, which was either calculated initially by Gaussian and then approximated in further steps (Opt=CalcFC), or re-calculated at each step (Opt=CalcAll). Approximating the force constants was usually…

    Words: 1109 - Pages: 5
  • Scorpion Chlorotoxin

    These derivatives were CA4 and CTX-23, these derivatives were used to see what would happen when they were used to treat glioma cells. They derived these peptides from two other peptides which were chlorotoxin and BmKCT 18,19. Then the scientist made the derivatives and through Polymerase chain reaction, they managed to amplify them and put them in a plasmid. Later they became E. coli cells that were purified even further. Later, they used different concentrations of the chlorotoxin derivatives…

    Words: 433 - Pages: 2
  • Molecular Electrostatic Potential (MEP) Surface Of Pyrazolooxazines

    The Quantitative Structure Activity Quantitative Relationship (QSAR) is currently applied in many drug design disciplines and environmental risk assessments. Our objective is to evaluate the physicochemical properties of the pyrazolooxazine derivatives (figure 5) given in this work, knowing that these molecules have an anti-inflammatory biological activity1.2. Some physicochemical properties were calculated using HyperChem 8.03 (Surface, Volume, Polazability, Refractivity and Hydration Energy…

    Words: 925 - Pages: 4
  • Gaye's Composition Analysis

    create a derivative song that paralleled the original, pursuant to section 103. Copyright Act of 1976, 17 U.S.C. §§ 103 (2012). 6a. Copyright infringement via Derivative Works Creating a derivative work would mean that Appellants had in fact committed copyright infringement. Section 101 of the Copyright Act of 1976 defines a “derivative…

    Words: 1233 - Pages: 5
  • Amodia Research Paper

    development of resistance. The derivatives usually have short half-life. If combined with other drugs with longer half-life, it increases the efficacy by reduction of multiple dose regiments and slows down its parasite resistance.[47b] The resistance of artemisinin is associated essentially with pfmdr1 Tyr86. Ser1034, Asn1042 and Asp1246 are also associate with this resistance.[49] Several combinations…

    Words: 1178 - Pages: 5
  • Corporate Decision Making Case Of John Shaw And Shaw

    resulted in the Indian shareholders suffering a huge loss. The researcher argues that it is circumstances like these which led to the codification of the concept of derivative action in India. Soon after this, the Companies Act, 1956 was amended and one amongst the numerous changes was the introduction of the English concept of Derivative Action which was introduced through Section 245 of the Companies Act,…

    Words: 2089 - Pages: 9
  • Thiosemicarbazone: Sulphur And Nitrogen

    1. INTRODUCTION Thiosemicarbazone is a derivative of imine which is formed when an aldehyde/ketone reacts with a thiosemicarbzide through a condensation reaction. The presence of the hetero atoms like Sulphur and Nitrogen makes these derivatives biologically active. Lately, great emphasis is laid on the synthesis and development of these derivatives reason being the wide variety of pharmacological activities exhibited by them. So far, thiosemicarbazones have been shown to exhibit analgesic and…

    Words: 979 - Pages: 4
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