Acetic anhydride acts as a
solvent for this reaction.
1. In order for a solution to generate heat when irradiated by microwaves the solvent must...
Write out your separation scheme for this experiment. 1. Heat 75 mL of water to 90 °C in a 250-mL beaker. 2. While the water is being heated, place 250 mg of salicylic acid, 1 drop of 85% phosphoric acid and 0.5 mL of acetic anhydride in a test tube. Add a boiling chip to the mixture and gently shake it in order to mix the reactants. 3. Heat the tube in the beaker of water at 85 - 90...
QUESTION:
Write a flow scheme for the work-up.
THE WORK UP:
C. Work-up (save all layers) and Isolation of Product MgBrCl Benzoic acid Transfer the mixture into a test tube. Rinse the beaker with about 3 mL of regular (not anhydrous) diethyl ether and pour the washings into the test tube. There should be two distinct layers in the test tube Remove the aqueous layer (to be discarded) and shake the ether layer with about 2 mL of 3 M...
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Chemistry 2211(PRIVATE) LABORATORY PRACTICUM - 4 DO NOT CONSULT WITH OTHER LABORATORY STUDENTS, THE LABORATORY INSTRUCTOR OR GRADUATE ASSISTANT UNLESS AN ISSUE OF SAFETY, EQUIPMENT NEEDS, OR EQUIPMENT FAILURE OCCURS. You may consult your laboratory notebook or the reference books in the laboratory You may take up to 150 minutes to carry out the procedure, complete your notebook writeup on the experiment, and submit to the instructor the notebook and clearly labeled product. THE MATERIALS...
PROCEDURE 1. Place a reaction tube into a 5-mL Erienmeyer and tare. Add between 0.275- 0.300g of salicylic acid. Record on the data sheet. 2. Transfer the reaction tube and 5-ml Erienmeyer to the hood. Add a boiling chip, 2 drops of 85% phosphoric acid, and about 0.70 mL of acetic anhydride to the reaction tube. Mix well. 3. Place a 50-ml beaker containing about 20-mls of water on a hot plate or in the sand bath. Allow the water...
Nitration of Methyl Benzoate to synthesize Methyl m-nitrobenzoate Find theoretical yield and percent yield. Show all steps. Results: .040 g of methyl m-nitrobenzoate crystals produced 1. Add .30 g of Methyl Benzoate to .6 ml of Sulfuric Acid in a reaction tube 2. Dropwise add a mixture of .2 ml of sulfuric acid and .2ml of nitric acid 3. After 15 min, pour onto 2.5 g of ice in a small beaker 4. Use suction filtration to dry crystals. Wash...
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Procedure: Measure and dispense 0.6 ml of a 4.4 M solution of sodium methoxide in methanol and of ethanol into a 5 mL reaction vial. Add 2.5 mmol of acetaminophen (-0.378. Set up for reflux in the rume hood and bring reaction to reflux for 15 minutes (solvent is boiling and vapors are condensing on condenser). After 15 minutes directly through the top of the condenser tube, carefully...
Determine the theoretical yield and limiting reagent
Running the Reaction Add 0.100 g benzil and 0.30 mL 95% ethanol to a 3-mL conical vial. Place a spin vane in the vial and attach an air condenser. Heat the mixture with an aluminum block (90-100°C) while stirring until the benzil has dissolved (see inset in Tech- nique 6, Figure 6.1A). Using a 9-inch Pasteur pipette, add dropwise 0.25 mL of an aqueous potassium hydroxide solution' downward through the condenser into the...
PROCEDURE CAUTION!!! Nitric acid and sulfuric acid are strong and corrosive acids. For that reason, avoid inhaling its vapors or causing any contact with the skin or clothing. Wear your protective glasses at all times. Use the extractors to work with these acids. A. Nitration of methyl benzoate 1. Preparation of the reactants. In the extractor you will find a burette with concentrated sulfuric acid, a second burette with concentrated nitric acid, clearly identified. Familiarize yourself with the scales of...
1.)
What side reactions occur during the following steps.
2.) How can the IR spectrum be used to show that there is not
starting material left and the products are ketones?
3.) Describe the major differences and similarities between
the IR spectra of benzoin and benzil. Compare your IR spectrum with
those of benzoin and benzil.
Copper-Catalyzed Oxidation of Benzoin 1. Add a stir bar and 1.5 mL of glacial acetic acid, 0.250 g of NH4NO3 and 0.500 g of...
Procedure: Measure and dispense 0.6 ml of a 4.4 M otion of sodium methoxide in methanol and me of ethanol into a 5 mL reaction vial. Add 2.5 mmol of acetaminophen (40.378. Set up for reflux in the rume hood and bring reaction to reflux for 15 minutes (solvent is boiling and vapors are condensing condenser). After 15 minutes, directly through the top of the condenser tube, carefully add 0.3 ml of iemy iodide. Continue to reflux for another 45...