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
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Cole. Purpose: In this experiment‚ potassium carbonate combined with a quaternary ammonium salt to form a strong base. The strong base created an anion from an ester of malonic acid. The ion reacted with bromobutane which was also in the reaction solution to give the product. The yield product was a butyl derivative of malonic ester that was isolated by adding water to the reaction solution‚ and extracting with ether. The ether was dried and evaporated to give the product. Procedures: 0.039g
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be made by hydrolysing methyl 2-hydroxybenzoate. Oil of wintergreen is 98% methyl 2-hydroxybenzoate and is what I used as my starting chemical. The structure of methyl-2-hydroxybenzoate is shown on the right‚ and is an ester as it has the functional group –COO-. Hydrolysing esters involves splitting them into carboxylic acids or their salts and alcohols by adding water‚ dilute acid or dilute alkali. To hydrolysed my oil of wintergreen I first reacted it with a weak alkali‚ aqueous sodium hydroxide
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Introduction to Alkane Nomenclature A. Determining the Priority of Functional Groups. What’s in a name? 3-ethyl-5-(1-methylpropyl)-4‚4-dimethylnonane Too big a subject to cover on one sheet! This paper will focus on alkanes. Determining functional group priority will be the subject of a subsequent sheet. suffix http://masterorganicchemistry.com D. Applying the Lowest Locator Rule F. Dealing With Branched Substituents (the IUPAC Way) Number the chain from one end so as
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the percentage purity of solid C was found to be 6.01%. The melting point range of purified solid C was 117.0 – 119.0C while the boiling point of liquid C was found to be 117C. The identity of solid C and liquid C was found to be benzoic acid and butyl acetate respectively. INTRODUCTION The isolation of individual or groups of compounds can be accomplished
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Organic Chemistry - Introduction 1 2812 Basic definitions for organic chemistry Scope Organic chemistry is a vast subject so it is easier to split it into small sections for study. This is usually done by studying compounds which behave in a similar way because they have a particular atom‚ or group of atoms‚ (FUNCTIONAL GROUP) in their structure. Catenation The ability to form bonds between atoms of the same element. Carbon catenates to form chains and rings‚ with single‚ double
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I found out that we have to use oil of wintergreen instead of Phenol as it is harmful and a lot more expensive as it is used in industry‚ the oil of wintergreen is a safer option to use in school and it is also part reacted meaning it already has esters attached so therefor was less risk for use to use it compared to Phenol. There were a lot of risks when performing these tests and so we had to take great precaution and stick by our risk assessments. Also a few things went wrong as well. After we
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red and a white precipitate with silver nitrate(aq) (drop on end of glass rod)‚ if the mixture is poured into water you may detect a ’pleasant’ ester odour‚ can test for HCl but water and amines produce it too!(ii) as for (1) but no ester smell!(iii) You should get a ’pleasant’ characteristic smell of an ester. | (i) R-OH + CH3COCl ==> CH3COOR + HClAn ester and hydrogen chloride are formed(ii) R-OH + PCl5 ==> R-Cl + POCl3 + HCla chloro compound and hydrogen chloride are formed.(i) and (ii) Ag+(aq) + Cl-(aq) ==> AgCl(s) from
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The simplest way to synthesize an ether is to have an alkoxide react with a primary haloalkane or a sulfonate ester under typical SN2 conditions. The scientist who developed this reaction‚ Alexander W. Williamson‚ was a professor at University College in London in the latter part of the 1800’s. This reaction has been around a while! Secondary haloalkanes and sulfonate esters are occasionally used in the Williamson ether synthesis but the yields are often poor. The ether prepared in this experiment
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Alcohols CH3CH2OH ethanol – OH (a) Add solid PCl5: White fumes of HCl liberated C2H5OH + PCl5 → C2H5Cl + POCl3 + HCl(g) (b) Add glacial ethanoic acid and a few drops of concentrated sulphuric acid and heat: Fragrant fruity smell of ester liberated CH3COOH + C2H5OH → CH3COOC2H5 + H2O Appendix Ace Ahead Chem (Appendix) 3rd (11/11/08).indd 1 1 11/13/08 12:36:33 PM Homologous series/ Typical compound Aldehydes CH3CHO ethanal Functional group(s) H ⏐ –C=O Chemical
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