Friedel-Crafts Acylation Lab Report

Improved Essays
Aromatic rings are very unique and therefore can follow very specific reactions in order to add select substituents to its ring. One of those types of reactions is referred to as Friedel-Crafts a reaction, to main sub-categories is Friedel-Crafts Alkylation and Friedel-Crafts Acylation. Both of these types of reactions involve electrophilic aromatic substitution and are work with deactivated rings (Friedel-Crafts Alkylation, 2010). In Friedel-Crafts Alkylation there is usually a secondary or tertiary alkyl halide (Cl) and a Lewis acid (AlCl3). The purpose of the Lewis acid is to create a carbocation, which is the electrophile. After the aromatic ring attacks the electrophile and the two bond the removed chloride atom then removes a proton from …show more content…
Cap the test tube and place in steam bath for 10 minutes and then follow with second TLC and if ferrocene is still present heat for 10 more minutes or until ferrocene no longer appears. Then cool the mixture in ice followed by the addition of 0.5 mL of water drop-wise. Then neutralize mixture using 3M sodium hydroxide, verify with litmus paper, collect product with Hirsch funnel and wash it with water. After drying product weight it, test melting point, and obtain proton NMR. The experimental melting point of Acetyl Ferrocene is 82-85°C, whereas the literature melting point is 85-86°C. The slight deviation can be one of two reason, either when the melting point was conducted the product was still slightly moist or that there are impurities present in the final product. The theoretical yield for the experiment is 0.114 g, but the actual yield is 0.055 g making the percent yield 58%. The TLCs that were conducted help keep track of the reaction because identify what compound were present at the time in terms of whether the starting material was still reacting and if the product formed. Rf1 represents the ferrocene, Rf2 has two values one for the product and one for the remaining starting material, and Rf3 represents just the product because the starting material was used up. The proton NMR helps verify that

Related Documents

  • Improved Essays

    9-Fluorenone Lab Report

    • 1277 Words
    • 6 Pages

    The product air-dried for about one week. After this time, the 9-fluorenol was recrystallized by a mixed solvent recrystallization4 using methanol and water over the steam table. The solution was cooled to room temperature and put in an ice-water bath for ten minutes. The crystals were collected and placed in the oven to dry for fifteen minutes. The product was weighed to calculate percent yield and its melting point was determined.5, 6 IR spectra of the starting material and the final product was obtained in order to be compared with those of authentic samples.1 Results…

    • 1277 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    In this experiment, thiamine was used to turn benzaldehyde, an electrophile, into a nucleophile. This nucleophilic benzaldehyde then reacts with another molecule of benzaldehyde to make benzoin. This means that benzaldehyde is the source of the electrophile and nucleophile in this reaction. The two molecules of benzaldehyde…

    • 484 Words
    • 2 Pages
    Improved Essays
  • Great Essays

    The compound Fe(NO3)3+12H2O was added to satisfy the iron component, and KCl was used in place of KNO3 to eliminate the usage of two compounds that had limiting reagents. This choice minimized the number of calculations that needed to be made and reduced possible errors. Despite efforts made to reduce errors, a contamination occurred while personal tests to find what caused the formation of a precipitate were conducted. The combination of Fe(NO3)3+12H2O and NaNO3 resulted in a small amount of precipitate that was significantly smaller than the initial precipitate that was viewed when all compounds were mixed. Considering this combination did not produce the same precipitate, a final test was conducted, which resulted in the same precipitate that formed when all compounds were mixed together.…

    • 2030 Words
    • 9 Pages
    Great Essays
  • Improved Essays

    Experiment 7 Electrophilic Aromatic Substitution Of Salicyamide Name: Lidia Santiana Palha Student number: s3333523 Email-address: lidiapalha@gmail.com Name of demonstrator: H.Helbert Reaction Equation Summary Salicylamide and sodium iodide are dissolved in ethanol, and stirred and cooled to 0. After that household bleach was added while stirring vigorously, solution changed from colorless to pale yellow. Sodium thiosulphate and hydrochloric acid were added aswell.…

    • 960 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    1. a. My data demonstrated the law of conservation of mass in part 5 of the experiment, dissolving sugar in water. The law of conservation mass states that matter cannot be created or destroyed by can enter or leave the system. The system’s change in mass was 0.00 grams, resulting in support of this statement.…

    • 456 Words
    • 2 Pages
    Improved Essays
  • Decent Essays

    Ap Chemistry Lab Report

    • 140 Words
    • 1 Pages

    There may have been errors in the lab that may have affected the results of the lab. There may have been mistakes: a person may have not measured the substances correctly while retrieving the liquids in the graduated cylinder, or not have been watching the conductivity probe while the group was measuring the electrolyte solution. Along with these, there is also the issue of timing the testing incorrectly. Adding onto this, there may have been a slight spill where the accurate amount of the substance being used was not completely added into the water for testing.…

    • 140 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Hydrate Lab

    • 805 Words
    • 4 Pages

    For this lab the experimental percent is slightly off form the theoretical percent. This is due to error in lab. In step 11, from the lab instructions, a stirring rod was used. This caused loss of Copper in the experiment. Copper was also lost in steps 12 through 15 when decanting the liquid from copper and pouring it into the funnel.…

    • 805 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    This the reaction involves a tertiary alkyl halide, which is tert-butyl chloride, which further indicates that the reaction follows a SN1…

    • 1172 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    After starting with 30 mL of an unknown mixture of two solvents, fractional distillation and gas chromatography were used to identify the unknowns as acetone and toluene in a 1 to 2.04 ratio of acetone to toluene. Fractional distillation was first used to separate the unknown mixture into its components based on boiling point. Distillation refers to the method of separating components of a mixture through heating and cooling. Simple distillation, which is especially useful in the separation of less-volatile substances from volatile substances, such as sugar from water, can be used to separate a liquid-liquid mixture if the boiling points of the component liquids differ by more than 40-50°C. A plot of temperature versus volume for a simple…

    • 958 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Subject: Experiment 23: Stereochemistry of the Addition of Bromine to trans-Cinnamic Acid Introduction/Abstract: The purpose of this experiment was to carry out the bromination of trans-cinnamic acid, to determine the stereochemistry of the dibromide product of 2,3-dibromo-3-phenylpropanoic acid, and find out whether the reaction proceeds by the usual bromonium ion mechanism or some other mechanism. In this experiment trans-cinnamic acid was mixed with glacial acetic acid and stirred in which then bromine/acetic acid solution was added to the mixture little by little. The dibromide becomes the precipitate of this solution during the reaction. Once this precipitate is separated by vacuum filtration the melting point helps identify…

    • 717 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    The actual weight of the ester was 0.6 g, producing a percent yield of 30.3%, meaning that the efficiency of the reaction was accurate because percent yield was less than 100%. Anything greater than 100% means that something went wrong in the experiment. The experimented melting point was 104.2℃, which was less than the expected melting point at 124-126℃ (ChemSpider). This was most likely due to the impurities being present in the sample, and some moisture still being present in the recovered caffeine when the melting point was determined.…

    • 505 Words
    • 3 Pages
    Decent Essays
  • Improved Essays

    Paracetamol Lab Report

    • 651 Words
    • 3 Pages

    These two steps were already carried out and 4 amino-phenol was the amine used in the first part of this experiment. 4 amino phenol and acetic anhydride undergo a nucleophilic addition-elimination reaction. A reaction mechanism is a step-by-step process when reactant molecules change in their geometry in order to produce new products. This occurs due to omission or addition of reagents, where bonds are broken down to form new ones4. 4 amino-phenol contains two functional groups, an OH and a NH2 group attached to a benzene ring while acetic anhydride is a derivative of a carboxylic acid group.…

    • 651 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The melting point of a substance is best described as the temperature at which a solid becomes a liquid (Bruice 2014). On the molecular level, when a compound melts the forces between the molecules become weaker. This is because when a substances heats up the kinetic energy between the molecules increase causing the molecules to vibrate. When the vibrations become strong enough for the molecules to move around and pass other molecules, the compound that is being heated up starts to melt and become a liquid.…

    • 756 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Abstract: The objective of this experiment was to synthesize aspirin from salicylic acid and acetic anhydride. The general theory behind this experiment was to study the synthesis of a drug from organic materials. During the experiment, esterification had occurred between reactants salicylic acid and acetic anhydride. Then, phosphoric acid would catalyze the reaction and water would be added to decompose the remaining acetic anhydride. Through the process of filtration, aspirin crystals were collected and separate from the liquid acetic acid-water solution.…

    • 993 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Then, the test tube was placed into an ice bath for fifteen minutes. The precipitate formed was then filtered using vacuum filtration. Once the filtration process was completed, we measured the powdery solid using constant weighing to obtain the dry yield of the product formed. The acetaminophen synthesized was used to perform cerium and universal indicator tests.…

    • 839 Words
    • 4 Pages
    Improved Essays