Experiment 1: Mechanism of Nitrile Oxide and Alkene Cycloaddition 1. Purpose: to clarify the mechanism for the cycloaddition reaction between benzonitrile oxide and an alkene‚ and to test the regiochemistry of the reaction between benzonitrile oxide and styrene. 2. Plan: Each student in a group of three will work to create a reaction with the Benzonitrile Oxide with‚ cis-stilbene‚ trans-stilbene‚ or styrene in an Erlenmyer flask. With this Reaction solution thin layer chromatography will be
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Experiment B10- Photocromism and Piezochromism Reece Harms 4320288 Introduction This experiment investigates an oxidative coupling reaction in an to synthesise triphenylimidazole dimer from 2‚4‚5-triphenyl-1H-imidazole. The resulting compound was investigated for both photochromic and piezochromic properties by way of formation of a stable radical‚ utilizing visual observations and UV-Vis as a means of distinction. Both the oxidative coupling reaction and the dimers interaction with light
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C│H│M│C│4│1 Letters 2013‚ Volume 1‚ Issue 1 A Perkin Reaction: Synthesis of (E)- and (Z)-Phenylcinnamic acids Thusanth Jogarajah‚ Dr. Lana Mikhaylichenko * Department of Physical and Environmental Sciences‚ University of Toronto Scarborough‚ 1265 Military Trial‚ Scarborough‚ ON‚ M1C 1A4 Received: February 6‚ 2013; E-mail Thusanth.Jogarajah@mail.utoronto.ca Abstract – Add text here Introduction: The name of this reaction is called the Perkin’s reaction. The reaction was
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S OUTHEAST ASIAN J T ROP MED P UBLIC H EALTH ANTI-HEAD LICE EFFECT OF ANNONA SQUAMOSA SEEDS Junya Intaranongpai 1‚ Warinthorn Chavasiri 2 and Wandee Gritsanapan 1 1 Department of Pharmacognosy‚ Faculty of Pharmacy‚ Mahidol University‚ Bangkok; Department of Chemistry‚ Faculty of Science‚ Chulalongkorn University‚ Bangkok‚ Thailand 2 Abstract. The present study focused on the separation and identification of the active compounds against head lice from the hexane extract of Annona squamosa
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EXPERIMENT NO. 9 Aim : To find the speed of sound in air at room temperature using a resonance tube apparatus Apparatus : Resonance tube apparatus ‚ tuning forks ‚ rubber pad ‚water Theory : If l1 and l2 be the length of the first and second resonance respectively with the tuning fork of frequency ‘(’ ‚ we can write l1 + e = λ / 4 l2 + e = 3λ / 4 ( where
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Diels-Alder Synthesis of Exo-Norbornene-cis-5‚6-Dicarboxylic Anhydride for Organic Chemistry Laboratory Instruction Kyle Myers and Dr. James Roark University of Nebraska at Kearney‚ Department of Chemistry‚ Kearney‚ NE 68849 Abstract A technique for the Diels-Alder synthesis of endo-norbornene-cis-5‚6dicarboxylic anhydride and its stereoisomer‚ exo-norbornene-cis-5‚6-dicarboxylic anhydride‚ is explained. To prove that each stereoisomer was made in the experiment and to distinguish between the
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Aim Synthesis of Meso-1‚2-diphenyl-1‚2-ethanediol with focus on stereoselectivity Method Please refer to the CEM3005W practical manual for details on experimental procedure. Results and Analysis {Limiting reagent} Mass benzoin = 2.0050g (0.00945 mole) Mass sodium borohydride = 0.4059g (0.0107 mole) Mass compound A used to form compound B = 1.0647g Results Mass (g) moles Molecular formula Yield (%) Mp (pure) Compound A 1.7458 0.00815 C14H14O2 86.22 138-139 Compound C 0.4255
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Chirality of Ethyl-3-hydroxybutanoate Generated from a Biological Pathway Jake Zimny LaSalle University Philadelphia‚ PA 19141 Submitted February 10‚ 2006 Abstract: The reaction being studied is a reduction of a ketone into an alcohol with a chiral center. Because a biological agent‚ bakers ’ yeast‚ is being used to drive this reaction‚ the optical purity that results in the product is so stereo-selective that the major product‚ (+)‚ is formed for 89% of the product. Introduction: This
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Introduction‚ Discuss the nucleophilic substitution reactions that take place in this experiment. Explain how the difference in activation energies‚ and the differences in stability of the product can cause either a kinetic or a thermodynamic product to be produced. What type of reaction conditions or electrophiles will cause one or the other product to be made. What product do you think will be made in this reaction? Describe how NMR can be used to determine the structure of the product the relative
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8. Terfenedine is an amino diol that is the active ingredient in the antihistamine Seldane. Mass spectral analysis of terfenedine shows a molecular ion at m/z = 471 and a peak at m/z = 472 which is 35.5% the height of the molecular ion. Terfenedine is known to contain C‚ H‚ O and N. (a) Suggest five molecular formulas for terfenedine. (b) Terfenedine has an even number of carbons and contains nine double bonds and four rings. Based on this additional information‚ what is the formula for terfenedine
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