Why is a Knoevenagel reaction chosen in one case and Pechmann in the other? How do...
Why is a Knoevenagel reaction chosen in one case and Pechmann in the other? How do the functional groups of the starting materials influence the choice of reaction conditions?
Homework Answers
In pechmann condensation, pbenol and it's derivative's are used and coumarin derivative's are the product.
While knovengal condensation uses carbonyl compounds and products are conjugated ester.
And beta keto esters or diesters are the another set of reagents in both reactions.
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Why is a Knoevenagel reaction chosen in one case and Pechmann in
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explain why one is chosen over the other. Problem 4 Propose reaction conditions that will give...
explain why one is chosen over the other.
Problem 4 Propose reaction conditions that will give the indicated product. о ОН ОН ОН “ ОН ОН
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3. Which TLC plate shows a completed reaction?
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explain why one is chosen over the other.
Problem 4 Propose reaction conditions that will give the indicated product. о ОН ОН ОН “ ОН ОН
1.
Why do we want a reaction to go to completion?
2. In general, what are the most reactive parts of a
molecule?
3. Which TLC plate shows a completed reaction?
SM = Starting Material, RXN = Reaction, P= Product
Why do we want a reaction to go to completion?! Consuming all the starting material means less waste Consuming all the starting material means you don't have to separate the starting material from your product o Consuming all the starting...
.
Find one example of an anti-cancer or anti- viral drug (other types of drugs are also okay) that has at least one chiral center in its structure. Write a brief overview of how this drug used and why it is effective (cite source!). Draw its structure and mark all the stereocenters with a star. Assign each stereocenter as R or S (in case the drug is used as a racemic mixture you can show one of the stereoisomers as...
Why do you think that the functional groups of alcohols, thiols, and ethers are grouped together? Describe the types of intermolecular forces that you think affect the properties of alkanes and the other functional groups of organic compounds discussed in this chapter.
21. Do Only One! Propose a multistep synthesis using the starting materials shown and any other reagents/reactants you need. To maximize partial credit, be sure to draw out the products of each reaction you propose. You do not need to draw mechanisms for full credit. (7 points) o by OR ОMe
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