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Exam 18: Aromatic Compounds

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Question 21

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Which of the following is another name for 4-chlorobenzaldehyde?

A) o-chlorobenzaldehyde
B) m- chlorobenzaldehyde
C) p-chlorobenzaldehyde
D) styrene
E) 1-chlorobenzaldehyde

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Question 22

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Classify the following compounds as aromatic, antiaromatic, or nonaromatic. Explain your choice.

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I. Aromatic
It is cyclic, planar, conjug...

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Question 23

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For disubstituted benzene derivatives, the descriptors ortho, meta, para are used when the parent is usually a ________.

Provide a structure for the compound with molecular formula C₉H₉ClO and with the following spectroscopic data. IR: 1680 cm^{−1 1}H NMR: 3.5 $\delta$ (triplet, I=2H), 4.0 $\delta$ (triplet, I=2H), 7.4 $\delta$ (triplet, I=2H), 7.6 $\delta$ (triplet, I=1H), 7.9 $\delta$ (doublet, I=2H)

Classify the following compound as aromatic, antiaromatic, or nonaromatic. Explain your choice.

What is the common name for the following compound?

Classify the following compounds as aromatic, antiaromatic, or nonaromatic. Explain your choice.

What is the main difference between an aromatic and antiaromatic compound?

Classify the following compound as aromatic, antiaromatic, or nonaromatic. Explain your choice.

Classify the following compound as aromatic, antiaromatic, or nonaromatic. Explain your choice.

Provide the product for the following reaction?

Provide a structure for the compound with molecular formula C₁₀H₁₂O₂ and with the following spectroscopic data. IR: 1680 cm⁻¹, 2750 cm⁻¹, 2850 cm^{−1 1}H NMR: 1.1 $\delta$ (triplet, I=3H), 3.5 $\delta$ (quartet, I=2H), 4.5 $\delta$ (singlet, I=2H), 7.3 $\delta$ (doublet, I=2H), 7.7 $\delta$ (doublet, I=2H), 9.9 $\delta$ (singlet, I=1H)

Which one of the following compound is nonaromatic?

What is the IUPAC name for the following compound?

Which one of the following compounds is most acidic?

Classify the following compound as aromatic, antiaromatic, or nonaromatic. Explain your choice.

Which one of the following compounds is aromatic?

A compound with molecular formula C₁₀H₁₄ displays the following IR, ¹HNMR, ¹³CNMR spectra. Propose a structure for this compound. SDBS

Provide the structure of the major product(s) for the following reaction.

Predict the product for the following reaction.