Reaction of Anthracene with Maleic Anhydride 1 The Diels-Alder Reaction of Anthracene with Maleic Anhydride Microscale Diels-Alder Reaction Leah Monroe March 6‚ 2003 Organic Chemistry Lab II Experiment performed on February 25 and 27‚ 2003 Abstract: This experiment involved a reaction between anthracene and maleic anhydride via a Diels Alder reaction to yield 9‚ 10-dihydroanthracene-9‚10-α‚ β-succinic anhydride. Anthracene was the diene and maleic anhydride was the dienophile. The percent
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of soap and synthetic detergents. II. Data and Observation A. Comparison of soaps and detergents 1. Hydrolysis Observation Reaction with blue litmus paper Acetic acid + Red Benzoic acid + Red Sodium Benzoate + Red (+)-miscible (-)-immiscible (red)-acidic (blue)-basic The hydrolysis was tested with acetic acid‚ benzoic acid‚ and sodium benzoate. 2mL water was placed in a test tube and 6 drops of sample was added to each. The mixture was mixed by shaking‚ examined‚ and
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that people for hundreds of years have been used for pain reducing. Salicylic acid irritates the stomach when consumed so German scientist Felix Hoffman suggested ASA as an alternative. Aspirin is made when Acetic Anhydride reacting with Salicylic acid to produce Acetylsalicylic acid and Acetic acid (diluted vinegar). Aspirin is in millions of home today and in America‚ about 50 million tablets are consumed every day. When aspirin ages it breaks down and returns to the main chemicals that made the
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the common ones: acid halides‚acid anhydrides‚ esters and amides.Carboxylic acids and their derivatives areusually seen in industrial processes and mostbiological pathways. Esters can be seen as fatsand within the cell membrane. Esters are alsopresent in pleasant smelling liquids that areresponsible with the fragrant odor of fruits andflowers. Amides are also present in animalprotein and also in industrial products such asnylon. Acid chlorides and acid anhydrides areused in the synthesis of carboxylic
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shares electrons with a hydrogen from the reagents. This mechanism allows for the formation of Salicylic Acid. When Acetic Anhydride is used as a reagent‚ the double bond on the ketone is transferred as a charge to the oxygen causing the opposite charges to attract. Once again‚ the electrophilic oxygen takes the lone pairs between the O-H bonds to form the final product of Aspirin and acetic acid. These mechanisms for this experiment can be seen in Scheme 1. Aspirin is classified as a Non-Steroidal Anti-Inflammatory
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acetaminophen. p-aminophenol and acetic anhydride were used to create acetaminophen and acetic acid. The acetic acid mixed with acetaminophen created an impure sample‚ which was purified through the addition of a water/methanol solution. The percent recovery of acetaminophen from the impure sample to the pure sample was 76%. The melting point of the pure sample was 167C - 169C. Introduction: Formulation of acetaminophen involves treating an amine with an acid anhydride to give rise to an amide. In
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Acetylsalicylic acid is the active pharmaceutical ingredient in aspirin and can be synthesized by the esterification reaction of salicylic acid and acetic anhydride in the presence of an acid catalyst. An esterification reaction is when an acid is converted into an ester by combining with an alcohol and removing a water molecule. When heating the salicylic acid mixture in the warm water bath‚ the mixture should be removed from the bath within 8 minutes‚ to reduce the chance of the acetylsalicylic
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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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synthesized using the Co(acac)3 complex produced in Experiment 2. The Co(acac)3 complex is used as a reagent instead of acacH because acacH cannot be directly converted to 3-nitroacetylacetone. Since Co(acac)3 is not stable in HNO3‚ Cu(NO3)2 and acetic anhydride are used in this reaction to produce the final product‚ Co(acac·NO2)3. The exact mechanism of the reaction is unknown‚ however‚ it is believed to proceed as follows: 1) [pic] 2) [pic] Data and Calculations Table 1: Measurements of weights
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Katherine Merene‚ Charlene Mondelo‚ and Pamela Mallari Department of Chemistry‚ University of Santo Tomas‚ Manila‚ Philippines Abstract: The purpose of this experiment was to synthesize isoamyl acetate via an esterification reaction between acetic acid and isoamyl alcohol‚ using concentrated sulfuric acid as a catalyst. The product was washed with sodium hydrogen carbonate‚ as well as with water‚ and then dried with anhydrous sodium sulfate. The percent yield of isoamyl acetate was 52.79%.
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