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Author Question: How many different aldols (hydroxyaldehydes), including constitutional isomers and stereoisomers, ... (Read 94 times)

erika

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on: Aug 23, 2018
How many different aldols (hydroxyaldehydes), including constitutional isomers and stereoisomers, are formed upon treatment of butanal with base?
   
  a.
  1
   
  b.
  2
   
  c.
  3
   
  d.
  4

Question 2

Instructions: The Stork enamine reaction is a variation on the Michael reaction that utilizes an enamine nucleophile. Use this information to answer the following question.
 
   


  Refer to instructions. Draw the structures of the ketone and amine products of this reaction.

Question 3

Instructions: Draw the structures of the precursors to the Michael reaction products shown in the question(s) below. Label the Michael donor and the Michael acceptor in each case and formulate the reaction.
 

Draw and label:
 
   



Question 4

Instructions: Draw the structures of the precursors to the Michael reaction products shown in the question(s) below. Label the Michael donor and the Michael acceptor in each case and formulate the reaction.
 

Draw and label:
 
   



Question 5

Instructions: Draw the structures of the precursors to the Michael reaction products shown in the question(s) below. Label the Michael donor and the Michael acceptor in each case and formulate the reaction.
 

Draw and label:
 
   



Question 6

Instructions: Draw the structure of the product you would expect to obtain by Claisen condensation of the esters shown in the question(s) below. If an ester does not undergo Claisen condensation, explain why it does not.
 

Draw and explain:
 
   



Question 7

Instructions: Draw the structure of the product you would expect to obtain by Claisen condensation of the esters shown in the question(s) below. If an ester does not undergo Claisen condensation, explain why it does not.
 

Draw and explain:
 
   



Question 8

Instructions: Consider the reaction below to answer the following question(s).
 
   


  Refer to instructions. This reaction is an example of:
   
  a.
  a mixed Claisen condensation.
   
  b.
  a Dieckman condensation.
   
  c.
  a Michael reaction.
   
  d.
  a mixed aldol reaction.

Question 9

Instructions: Consider the reaction below to answer the following question(s).
 
   



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macagnavarro

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Reply #1 on: Aug 23, 2018
Answer to Question 1

d

Answer to Question 2



Answer to Question 3



Answer to Question 4



Answer to Question 5



Answer to Question 6



Answer to Question 7

This ester does not undergo Claisen condensation, because it has no -hydrogens and cannot undergo enolization.

Answer to Question 8

d

Answer to Question 9



Answer to Question 10

A

Answer to Question 11

a)



b)


erika

  • Member
  • Posts: 522
Reply 2 on: Aug 23, 2018
Great answer, keep it coming :)

meow1234

  • Member
  • Posts: 333
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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