Question

In: Chemistry

the product in a Coumarin synthesis lab is soluble in aqueous base. Why? 1.The base deprotonates...

the product in a Coumarin synthesis lab is soluble in aqueous base. Why?

1.The base deprotonates α- to the carbonyl to form an enolate ion.

2.The base deprotonates α- to the phenol to form a phenylate anion.

3.The base deprotonates the phenol hydroxyl to form a phenoxide anion.

4.The product is water soluble.

Solutions

Expert Solution

Answer: 3.The base deprotonates the phenol hydroxyl to form a phenoxide anion.

Reason: I have attached Dry lab page below for your kind consideration and hope the same product you synthesized, if not no worries - the phenol hydroxyl group is deprotonated in all types of products formed from Coumarin.


Related Solutions

The lab experiment is the synthesis of aspirin. The product will be acetylsalicylic acid (aspirin) and...
The lab experiment is the synthesis of aspirin. The product will be acetylsalicylic acid (aspirin) and the by-product will be acetic acid. How will you separate the by-product from the desired product? is it from recrystallization and then vacuum filtration?
Mg(OH)2 is a sparingly soluble compound, in this case a base, with a solubility product, Ksp,...
Mg(OH)2 is a sparingly soluble compound, in this case a base, with a solubility product, Ksp, of 5.61×10−11. It is used to control the pH and provide nutrients in the biological (microbial) treatment of municipal wastewater streams. Part A: Based on the given value of the Ksp, calculate the ratio of solubility of Mg(OH)2 dissolved in pure H2O to Mg(OH)2 dissolved in a 0.160 M NaOH solution. Part B: What is the pH change of a 0.300 M solution of...
Is acetone soluble in 1-propanol? Why or why not?
Is acetone soluble in 1-propanol? Why or why not?
Briefly explain how aqueous base can cause some water-insoluble compounds to become water-soluble. (b) Answer the...
Briefly explain how aqueous base can cause some water-insoluble compounds to become water-soluble. (b) Answer the same question for aqueous acid.
Why is each of the three solids (acid, base, and neutral) soluble in diethyl ether? Examine...
Why is each of the three solids (acid, base, and neutral) soluble in diethyl ether? Examine the structure of each solid and explain what factors increase solubility in water vs. the organic solvent used. Identify the significant intermolecular forces affecting solubility. Please explain why two layers form when 3 M NaOH is added to the ether solution. What solvents do the two layers represent and which solvent forms the upper layer? 3 solids are Benzoic acid, 4-aminobenzoate, and 9-fluorenone. Thank...
Synthesis of soap from lipids lab 1. Propose a reasonable explanation for why soaps form scums...
Synthesis of soap from lipids lab 1. Propose a reasonable explanation for why soaps form scums with ions like Ca2+ but not with Na+. 2. Compare the previous results with the test with tap water. Do you believe you have hard or soft water in your area?
synthesis and properties of biodiesel lab : why is it necessary to add anhydrous sodium carbonate...
synthesis and properties of biodiesel lab : why is it necessary to add anhydrous sodium carbonate to the biodiesel product? Describe 3 factors that must be considered when producing biodiesel fuel on an industrial scale compared to producing less than one liter of it in the laboratory.
In a heat of neutralization lab experiment, why do the temperatures of the acid and base...
In a heat of neutralization lab experiment, why do the temperatures of the acid and base must be the same? What happens if they are not the same?
Describe the steps in the synthesis and transport of a soluble, N-glycosylated glycoprotein from when is...
Describe the steps in the synthesis and transport of a soluble, N-glycosylated glycoprotein from when is emerges from the ribosome during translation, until it is secreted at the cell surface. Be sure to include glycan synthesis and transfer to the protein. I have seen this question been posted earlier, but I was wondering if someone could "dumb" it down for me as I find the process quite confusing. Thank you in advance!
Aspirin Synthesis Lab: What is the purpose of "buffered" aspirin?
Aspirin Synthesis Lab: What is the purpose of "buffered" aspirin?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT