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Author Question: Which of the following is not an electrocyclic reaction? a. b. c. ... (Read 39 times)

saraeharris

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on: Aug 23, 2018
Which of the following is not an electrocyclic reaction?
   
  a.
 


   


   
  b.
 


   


   
  c.
 


   


   
  d.
 


   


   
  e.
  All are electrocyclic reactions.

Question 2

The photochemical cycloaddition of the structure below is related to DNA mutations causing skin cancer. Draw the structure of this dimer. Atoms other than carbon and hydrogen are labeled.
 
   


 

Question 3

Draw the structure of the product when the following substance reacts with maleic anhydride. Classify the reaction according to the number of  electrons that interact. Atoms other than carbon and hydrogen are labeled.
 
   


 

Question 4

Define a pericyclic reaction.


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diesoon

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

e

Answer to Question 2

2+2 cycloaddition occurs due to photochemical conditions.



Answer to Question 3

4+2



Answer to Question 4

A concerted reaction through a cyclic transition state. Occurs in one step without the formation of intermediates.


saraeharris

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Reply 2 on: Aug 23, 2018
Gracias!

bassamabas

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Reply 3 on: Yesterday
Wow, this really help

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