said to be unsaturated. Aromatic hydrocarbons are cyclic compounds whose structure is related to that of benzene‚ with six -electrons in a six-member ring. Aliphatic Hydrocarbons such as Alkanes are relatively inert to chemical oxidizing agents such as neutral or alkaline permanganate‚ where alkenes are readily oxidized at room temperature. The change in color can be used as a test for a double bond‚ provided the molecule contains no easily oxidizable group. Aromatic Hydrocarbons such as toluene
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Experiment C. Aim: To protect one of two carbonyl groups (C1) in order to allow the other to react twice with a Grignard followed by removal of the protecting group by acid hydrolysis to give final product (C2). Method: Ethyl acetoacetate (30.03g)‚ ethylene glycol (15.01g) and toluene-p-sulphonic acid (0.13g) were added to a 250 cm3 round bottomed flask‚ containing a stirrer bar and toluene (100 cm3)‚ fitted with a condenser and dean-stark head. Solution was heated strongly under reflux using
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(the Biuret test) with the oxidation of aromatic protein residues. The Lowry method is best used with protein concentrations of 0.01–1.0 mg/mL and is based on the reaction of Cu+‚ produced by the oxidation of peptide bonds‚ with Folin–Ciocalteu reagent (a mixture of phosphotungstic acid and phosphomolybdic acid in the Folin–Ciocalteu reaction). The reaction mechanism is not well understood‚ but involves reduction of the Folin reagent and oxidation of aromatic residues (mainly tryptophan‚ also tyrosine)
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Carsten Jork‚ Asimina Kavarnou‚ and Wolfgang Arlt‚ Rolf Hirsch‚ 2004‚ Separation of Azeotropic Mixtures Using Hyperbranched Polymers or Ionic 15. G. Wytze Meindersma‚ Anita (J.G.) Podt‚ Marianne B. Klaren and André B. de Haan‚ 2004‚ SEPARATION OF AROMATIC AND ALIPHATIC HYDROCARBONS WITH IONIC
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TUTORIAL 1: STK1503 BENZENE AND AROMATIC 1. Draw structures corresponding to the names given. a. m-fluoronitrobenzene b. p o-chlorophenol c. o-chlorophenol d. 3‚5-dimethylbenzoic acid e. 1-phenyl-3-methylpentane 2. Provide correct IUPAC names for each of the following compounds. a. NO2 CH3 b. c. CH3 d. NH2 H2N CH3 e. Ph C H3 C C CH2CH2CH3 Ph 3. For each molecule below‚ predict whether the molecule would be expected to show aromatic character or not. Explain your answer
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Aroma therapy is a type of alternative medicine which uses essential oils and other aromatic plant compounds which are aimed at improving someone’s health and mood. Many people would consider Aroma therapy to some people is classed as unscientific and wishful thinking-however scientist evidence has in fact proved that the effectiveness is growing. It is said to make an individual feel good although there is no evidence that it can make someone well. The theory behind aroma therapy is that the inhalation
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follows a certain scheme on testing the compound. Each test will link to another test until we ended up with the class of that compound. We finally determine the class of the three unknowns. It is found out to be an Sb - amine -‚ S -salt -‚ and an N -aromatic compound-. Keywords: solubility‚ classification‚ organic compounds‚ solubility test‚ preliminary test Introduction One important part of experimental organic chemistry is to be able to analyze and identify an unknown organic compound from its functional
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1 CHM 1321-C Final Exam (prof. S. Gambarotta) Your Name: ___________________ April 12– 2013 Student #: ______________ 1. Solution key will be posted today on the web to day. 2. You must respond correctly to the first 41 exercises (1 mark each) to get the full mark. 3. There are 3 bonus questions at the end (4 mark each). In case of correct answers‚ each will add 4 marks to whatever you scored from the non-bonus questions. 4. Deliver the entire booklet 2 1) How many π bonds are present in
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Bromination of Acetanilide Objective: The objective of this experiment was to use melting point and NMR to determine which of two isomers‚ ortho or para‚ would most likely form after brominating Acetanilide through electrophilic aromatic substitution. Procedure/Observations: 1. Weigh out ~280 mg of acetanilide in a 10 mL r.b. flask with a stir bar. 2. Then‚ add 2.0 mL of glacial acetic acid using a calibrated Pasteur pipet. 3. Stir the mixture until all of the acetanilide has dissolved
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(INTERNAL REPORT) CENTERPLASTICS COMPOUND & ADDITIVES Feb.2011 - M.S. Laura Fontana - Centerplastics Enterprise‚ Ltd Eastern Industrial Road‚ zip. 516127‚ Shiwan Town‚ Boluo Area‚ Huizhou‚ DongGuan‚ GuangDong‚ P.R.China PPH Chapter 1 - Introduction Approximately 25 potential devulcanization technology researchers and developers were identified throughout the world‚ however‚ only a very small number of devulcanization systems are now operating. These are primarily small-capacity systems
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