In the reaction of trans-cinnamaldehyde under the conditions of 2-propanol and gamma-Al2O3, the product yielded is cinnamyl alcohol. When the reaction was first performed the GC and IR showed signals of the formation of a carbocation-like intermediate on the phenyl ring. The 2-propanol used contained high amounts of HCl. How does the high amount of HCl in 2-propanol affect gamma-Al2O? Also, show the intermediate that was formed? The second reaction performed did not contain high amounts of HCl so the product formed was cinnamyl alcohol. Draw the proton NMR spectrum of cinnamyl alcohol.

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In the reaction of trans-cinnamaldehyde under the conditions of 2-propanol and gamma-Al2O3, the product yielded is cinnamyl alcohol.

When the reaction was first performed the GC and IR showed signals of the formation of a carbocation-like intermediate on the phenyl ring. The 2-propanol used contained high amounts of HCl. How does the high amount of HCl in 2-propanol affect gamma-Al2O? Also, show the intermediate that was formed?

 

The second reaction performed did not contain high amounts of HCl so the product formed was cinnamyl alcohol. Draw the proton NMR spectrum of cinnamyl alcohol.

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