Compare the addition of H1 to 1,3-pentadiene and 1,4-pentadiene (see Problem 46). Draw the structures of the products. Draw a qualitative reaction profile showing both dienes and both proton addition products on the same graph. Which diene adds the proton faster? Which one gives the more stable product? 

Data From Problem 46

Compare the allylic bromination reactions of 1,3-pentadiene and 1,4-pentadiene. Which should be faster? Which is more energetically favorable? How do the product mixtures compare?

 

Transcribed Image Text:

NBS, ROOR, CCI CH,=CH-CH=CH-CH3 NBS, ROOR, CCI4 CH,=CH-CH,=CH-CH,