Once produced, the Grignard reagent was then used to synthesise triphenylmethanol by reacting it with benzophenone. Reaction Scheme: Theory Reaction Mechanism The halide can be Iodide, chloride, or bromide, but fluoride is too unreactive form Magnesium to be used.
2-propanol (bp=82 degrees C) 3. tetrahydofuran (bp=65 degrees C) 4. 1-butanol (bp=118 degrees C) 5. butanone (bp=80 degrees C) Give a better separation for the mixture to be distilled tetrahydofuran (bp=65 degrees C) because it is farthest from 100 degrees C Which alkyl halide would react fastest in a nucleophilic substitution using silver nitrate in ethanol (weak nucleophile, protic solvent)? 3-bromo-3-methylpentane (most
Since (+)-α-Pinene's double bond is trisubstituted and sterically hindered, only two compounds will reaction with borane to form dialkylborane as intermediate. After we get borane in the desired position, we will need to do oxidation process to replace borane by -OH group. Treat dialkylborane with NaOH and H202 to form alcohol and boric acid. Oxygen in hydrogen peroxide will attach to
The acid used in order to produce acetylsalicylic acid (aspirin) is acetic anhydride and there is no alcohol used so instead another acid called salicylic acid is substituted since it consists of the hydroxyl group. The correct ester name for aspirin is 2-acetyloxybenzoic acid. 5. In order to make the oil of the wintergreen odour, the substances salicylic acid and methanol are required in order to produce the methyl salicylate. However, the difference is the role in which it plays during the reaction since in wintergreen it is substituted as the carboxylic acid but in order to produce aspirin it is used as the alcohol.
Fats ANSWERS 1) Fats and oils can be described as esters of glycerol, C3H8O3. (a) (i) Draw the structure of glycerol. (i) CH2OHCHOHCH2OH; 1 (ii) Glycerol can react with three molecules of stearic acid, C17H35COOH, to form a triglyceride. Deduce the number of carbon atoms in one molecule of this triglyceride. 57 (1) (iii) A triglyceride is also formed in the reaction between glycerol and three molecules of oleic acid, C17H33COOH.
Calculate the molarity of the original vinegar solution and its concentration in gdm-3, given that it reacts with NaOH in a 1:1 ratio. 7. 2.5 g of a sample of ethanedioic acid, H2C2O4.nH2O, was dissolved in water and the solution made up to 250 cm3. This solution was placed in a burette and 15.8 cm3 were required to neutralise 25 cm3 of 0.1 moldm-3 NaOH. Given that ethanedioic acid reacts with NaOH
Title: Bromination of (E) – Stilbene (Microscale Procedure) Author’s Name: Reinaldo George Professor: Elvis Barrett Date of Experiment: Thursday July 16th 2015 Institution: Nova Southeastern University Abstract The purpose of this experiment was to synthesize the second intermediate in the b series of Sequential Reactions by carrying out the bromination of (E)-stilbene to obtain meso-stilbene dibromide. This product is the precursor to diphenylacetylene, the next synthetic intermediate in the b series. A further purpose of this experiment is to demonstrate the stereospecific addition of bromine to alkenes. The percentage recovery was also calculated and recorded. On completion of this experiment; my lab partners and I were able to successfully synthesize the second intermediate in the b series of the
BIOSYNTHESIS OF ETHANOL Organic Chemistry 3441 March, 8, 2014 Abstract: The purpose of this experiment was to distil an ethanol-water mixture with simple and fractional distillation then determine the percentage of each compound in the mixture using a gas chromatograph with a thermal conductivity detector (GC-TCD). A mixture of disodium hydrogen phosphate, yeast, water, and sucrose was allowed to ferment with a calcium hydroxide trap and distilled with simple distillation yielding 57.7% ethanol and the fractional distillation resulted in 85.6%, in contrast to the original un-distilled sample that contained 10.7%. Had the distillations been performed at a slower pace, it is highly likely that higher ethanol concentrations could have been obtained. The evolution of carbon dioxide will drive out the residual air that is in the apparatus, and the test tube bubbler will ensure that no oxygen will diffuse back into the fermentation flask. Keywords: Ethanol, Simple Distillation, Fractional Distillation, Biosynthesis Introduction: It is well known that all throughout history, people have utilized yeast’s ability to convert sugars into ethanol primarily in hopes of an intoxicating beverage.
Experiment: Cyclohexanone from Cyclohexanol aq Abstract: The primary objective of this experiment was to create cyclohexene from the dehydration of cyclohexanol with phosphoric acid. Through the use of simple distillation it was possible to separate the solution. The Agilent 7890A Gas Chromatography System was used to determine the purity of the distillate which verified the success of the separation. Introduction: Alkenes can be prepared by from alcohols by an acid catalyzed dehydration reaction. In the experiment a secondary alcohol (cyclohexanol) is heated with acid (phosphoric acid).
Questions: 1. Write an equation that explains the solubility of diethylamine in water (CH2CH3)2NH (CH2CH3)2N+ (CH2CH3)2NOH (CH2CH3)2NOHO- (CH2CH3)2NO- 2. Write an equation for the reaction of dibutylamine with HCl and for treatment of the product with NaOH 3. For the reaction of butylamine with nitrous acid a) Write structural formula of the diazonium ion formed i. CH3CH2CH2CH2-N- b) From