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Author Question: Identify the major product of the following reaction. a. b. c. d. ... (Read 34 times)

jon_i

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on: Aug 23, 2018
Identify the major product of the following reaction.
 
 
   
  a.
 
   
  b.
 
   
  c.
 
   
  d.
 

Question 2

Aspirin, also known as acetylsalicylic acid, is used to treat fever and inflammation. It is prepared from an unknown compound A by the process of esterification, using acetic anhydride. Identify compound A.
   
  a.
 
   
  b.
 
   
  c.
 
   
  d.
 

Question 3

What is the chemical name of the following compound?
 
 
   
  a.
  2,3-dichloro-5,6-dicyano-1,4-benzoquinone
   
  b.
  2,3-dichloro-5,6-dicyano-1,4-benzodione
   
  c.
  5,6-dicyano-2,3-dichloro-1,4-benzodione
   
  d.
  2,3-dicyano-5,6-dichloro-1,4-benzoquinone

Question 4

Provide a brief explanation of why the cyclopentadienyl anion (below) is aromatic. Your answer should identify the hybridization of each carbon atom and account for which electrons are in the pi system.
 
   



Question 5

Provide a brief explanation of why furan (below) is aromatic. Your answer should identify the hybridization of the oxygen atom and account for which electrons are in the pi system.
 
   



Question 6

List all of the requirements of a molecule for it to be considered aromatic.


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diana chang

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

a

Answer to Question 2

a

Answer to Question 3

a

Answer to Question 4

The all five carbons are sp2 hybridized. The lone pair is in a p orbital and is part of the pi system, along with one electron in the p orbital on each of the other four carbon atoms for a total of six pi electrons.

Answer to Question 5

The oxygen is sp2 hybridized. One lone pair is in a p orbital and is part of the pi system, along with one electron in the p orbital on each of the four carbon atoms. The other lone pair of the oxygen is in an sp2 orbital, which is in the plane of the ring and not involved in the pi system.

Answer to Question 6

An aromatic molecule has an uninterrupted cycle of overlapping p orbitals (i.e., the cyclic structure should be planar) that contains 2n+2 (i.e., 2, 6, 8, ...) electrons


jon_i

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Reply 2 on: Aug 23, 2018
Thanks for the timely response, appreciate it

parshano

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Reply 3 on: Yesterday
Excellent

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