Exam 8: Delocalized Electrons: Their Effect on Stability, pka, and the Products of a Reaction - Aromaticity and Electronic Effects: an Introduction to the Reactions of Benzene

Aromatic molecules contain ________ π electrons.

Show the missing reagents A and the compound B.

What diene and dienophile should be used to synthesize the compound below?

Which of the following is the strongest acid?

Provide the structure of the major organic product in the following reaction.

Does the following structures represent different compounds or resonance contributors?

Which of the following is the strongest acid?

Due to electron delocalization,one would predict that the carbon-oxygen bond in acetamide,CH₃CONH₂

Consider the hydrogenation reaction of each compound listed and rank the compounds in order of increasing ΔH° of this reaction.The most negative ΔH° should be listed first. 2,5-dimethyl-1,3-cycloheptadiene, 1,4-dimethyl-1,3-cycloheptadiene,and 3,6-dimethyl-1,4-cycloheptadiene

Provide the major organic product.

The delocalized π system of benzene is located

Which of the following is aromatic?

When 1,3-butadiene reacts with CH₂ CHCN,which of the terms below best describes the product mixture?

What is the most acidic hydrogen on cyclopentadiene?

Excluding the horizontal node which is coincident with the molecular plane,how many nodes are present in Ψ₄ of the 1,3,5-hexatriene π system?

Provide the structure of the major organic product in the following reaction.

Which of the following is the most stable cation?

Identify the most stable carbocation.

Which of the following statements concerning resonance contributors and resonance hybrids is not correct?

Classify the compound below as aromatic,antiaromatic,or nonaromatic.Assume planarity of the π network.