Predict the product, when cyclopentanecarbaldehyde reacts with phenylhydrazine (PhNHNH2) in the presence of an acid catalyst.

Which of the following is the best choice to prepare the following alkene using the Wittig reaction?  

What is (are) the product(s) of the following reaction?   

Which of the following is the kinetic rate equation for the addition-elimination mechanism of nucleophilic aromatic substitution?

Bonus question Provide a stepwise synthesis for the following.         he answer should be entered as in the following example: (this is an example!) 1. NaNH2   2. CH3CH2Br   3. H2, Lindlar’s Cat.    4. BH3, THF   5. H2O2, NaOH                          (Keep three spaces between each step) All chemicals and reagents  structures should be correct and with the proper sequence. No partial credit.

Which structure is consistent with this 1H NMR spectrum?

Bonus question Provide a stepwise synthesis for the following.    he answer should be entered as in the following example: (this is an example!) 1. NaNH2   2. CH3CH2Br   3. H2, Lindlar’s Cat.    4. BH3, THF   5. H2O2, NaOH                          (Keep five spaces between each step) All chemicals and reagents  structures should be correct and with the proper sequence. No partial credit.

Which of the following is the structure of the complex of Br2 with FeBr3 involved in the electrophilic bromination of benzene?

Which mechanism accounts for the reaction of 4-bromo-1-nitrobenzene with sodium hydroxide to form 4-nitrophenol?

Bonus question Provide a stepwise synthesis for the following.     he answer should be entered as in the following example: (this is an example!) 1. NaNH2   2. CH3CH2Br   3. H2, Lindlar’s Cat.    4. BH3, THF   5. H2O2, NaOH                          (Keep five spaces between each step) All chemicals and reagents  structures should be correct and with the proper sequence. No partial credit.