Reminder: These notes are meant to supplement‚ not replace‚ the laboratory manual. A Diels-Alder Reaction History and Application: The 1950 Nobel prize in chemistry was awarded to Otto Paul Hermann Diels and Kurt Alder for their breakthrough work on the discovery and development of [4 + 2] cycloaddition reactions i. This set of reactions are enormously useful in the synthesis of six membered rings in a single stepii. These are used in many pharmaceutical applications. Tamiflu® is a drug which
Premium Chemical reaction Carboxylic acid Oxygen
Introduction An essential oil is a concentrated hydrophobic liquid containing volatile aroma compounds from plants. Essential oils are also known as volatile oils‚ ethereal oils or aetherolea‚ or simply as the "oil of" the plant from which they were extracted‚ such as oil of clove. Volatile oils are the odorous and volatile products of various plant and animal species. As they have a tendency to undergo evaporation on being exposed to the air even at an ambient temperature‚ they are invariably termed
Premium Essential oil Ethanol Citrus
Introduction The Diels-Alder Reaction is a reaction used in organic chemistry that builds rings very efficiently (1)‚ this cycloaddition process allows for the stereoselective formation of cyclohexene rings possessing as many as four contiguous stereogenic centers (3). This reaction occurs without intermediates‚ in a single step‚ which explains the stereospecificity due to substituents not being given the chance to “switch around”. (1)These six membered rings are synthesized by reacting a dienophile
Premium Chemistry Distillation
STEREOCHEMISTRY: ADDITION OF BROMINE TO trans-CINNAMIC ACID Required Prelab Readings: McMurry Chapter 5‚ Sections 8.2 & 21.2 Morhig‚ Sections 7.1 and 7.3. Previous techniques that you must know and be able to perform: Suction Filtration and Melting Point This experiment is designed to demonstrate two concepts. First‚ it will provide a demonstration of how chemists can use chemical reactions to understand reaction mechanisms. Second‚ is the concept of multi-step synthesis. You will
Premium Chemistry Chemical reaction
SEPERATING CYCLOHEXANE AND TOLUENE BY DISTILLATION Aim: Separate two miscible liquids‚ either by macroscale or microscale process‚ using simple and fractional distillation. Compare the efficiencies of simple and fractional distillation. INTRODUCTION: The purpose of this experiment is to learn how to separate two miscible liquids by microscale process. There will be use of simple and fractional distillation. Simple and fractional distillation efficiencies will be compared. The student should have
Premium Vapor pressure Temperature Gas
skeleton: CH3 H3C CH3 2. The molecule trans-cyclooctene is known to exist. (It is chiral‚ by the way). Why is the analagous molecule trans-cyclohexene unstable? Far too strained to have a trans-alkene in a six-membered ring. H H H = H H H trans-cyclooctene (planar representation) trans-cyclooctene (perspective representation) trans-cyclohexene???? 3. Draw each of the following bicyclic alkenes in a good "perspective" representation. Only one of these three compounds actually exists
Premium Electron Aromaticity Electron configuration
Identification Using Infrared Spectroscopy Aim: To identify the functional groups in organic compounds using infrared spectra. APPARATUS AND REAGENTS: Nicolet 380FTIR‚ HATR Accessory (liquid crystal plates) Reagents ( Methanol‚ Benzene and Cyclohexane‚ Cyclohexene) THEORY: An important tool of the organic chemist is Infrared Spectroscopy‚ or "IR". IR spectra are acquired on a special instrument‚ called an IR spectrometer. IR is used to gather information about compound ’s structure‚ assess its purity‚ and
Premium PH Concentration Chemistry
Maleic anhydride underwent the Dials-Alder reaction with distilled cyclopentadiene as the dienophile. The reaction was a cycloaddition which produced cis-Norbornene-5‚6-endo-dicarboxylic Anhydride surface. (1) Product one had a mass of 9.351 grams and product two had a mass of 9.572 grams. The theoretical yield was found to be 10.047 grams‚ which makes the percent yield to be 93.07%. Melting Points were found to confirm the purity of the product. Product one had a melting point of 163.7-164
Premium
Analysis of Hydrocarbons Jennifer Alambra‚ Ma. Nancy Anulat‚ Alfonso Apepe*‚ Jacqueline Arsenal 3Bio4 Department of Biological Sciences - College of Science‚ University of Santo Tomas‚ Manila ABSTRACT The unknown hydrocarbon sample was differentiated and characterized by the use of three tests. The outcomes of these tests are as follows: Nitration test (negative)‚ Bromine test (positive) and Basic Oxidation test (positive). From these results the unknown sample can be classified
Premium Hydrocarbon Benzene Carbon
LETTER OF TRANSMITTAL 2nd May 2011 Md. Firoz-Al-Mamun Assistant Professor Faculty Of Business ASA University Bangladesh Subject: Submission of term paper. Dear Sir‚ With due respect it is our pleasure to present the term paper entitled ‘‘Marketing Plan”. While preparing the statement we have tried our best to create a perfect Marketing Plan and tried to show all sort of planning and project works that is required to make the plan perfect. We have collected all the up-dated information
Premium Management Education World War II