Predict the product for the following reaction.
A) 3-methyl-2-pentanone
B) 3-methyl -1-propanol
C) 2-methyl-1-butanol
D) 3-methyl-2-pentanol
E) none of these

Question

Predict the product for the following reaction. 
A) 3-methyl-2-pentanone 
B) 3-methyl -1-propanol 
C) 2-methyl-1-butanol 
D) 3-methyl-2-pentanol 
E) none of these

Quizplus · Accepted Answer

The reaction appears to be a Grignard reaction between 2-methyl-1-pentene and methylmagnesium bromide in the presence of ether solvent. The Grignard reagent adds to the electrophilic carbon of the double bond to form an alcohol. The carbon attached to the hydroxyl group will have the same number of carbons as the Grignard reagent, and thus the product formed will be 2-methyl-1-butanol (Option C).

Predict the Product for the Following Reaction