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.

Why are strongly acidic conditions not used in the formation of enamines and imines?

Which of the following is the reactive intermediate formed in the electrophilic nitration of nitrobenzene with HNO3 and H2SO4?

When a carbonyl is part of a conjugated π-network, the CO stretch ________.

What is the product of the reaction of butanal with excess methanol and catalytic sulfuric acid?

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

What reagents should be used to accomplish the following synthesis?

What would be the product of the following reaction?   

Which is the most reactive carbonyl compound?