Given that cyclopropanone is highly reactive because of the large angle strain in the molecule. Methylcyclopropenone, although even more strained than cyclopropanone, is quite stable and can even be distilled. Taking the polarity of the carbonyl group into account this observation is to be explained. Concept introduction: Carbonyl group is polar as oxygen is more electronegative than carbon. According to Huckel’s rule, any specie that is cyclic, planar and has (4n+2) Ï€ electrons will be aromatic and stable. Thus species with 2, 6, 10, 14 etc. Ï€ electrons will be aromatic and stable. To explain: Taking into account the polarity of the carbonyl group, the observation that cyclopropanone is highly reactive because of the large angle strain in the molecule while methylcyclopropenone, although even more strained than cyclopropanone, is quite stable and can even be distilled.

Question

Is this aromatic?

Answer 1

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 15.SE, Problem 31AP

Interpretation Introduction

Interpretation:

Given that cyclopropanone is highly reactive because of the large angle strain in the molecule. Methylcyclopropenone, although even more strained than cyclopropanone, is quite stable and can even be distilled. Taking the polarity of the carbonyl group into account this observation is to be explained.

Concept introduction:

Carbonyl group is polar as oxygen is more electronegative than carbon. According to Huckel’s rule, any specie that is cyclic, planar and has (4n+2) Ï€ electrons will be aromatic and stable. Thus species with 2, 6, 10, 14 etc. Ï€ electrons will be aromatic and stable.

To explain:

Taking into account the polarity of the carbonyl group, the observation that cyclopropanone is highly reactive because of the large angle strain in the molecule while methylcyclopropenone, although even more strained than cyclopropanone, is quite stable and can even be distilled.

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Is this aromatic?

CHEM2323 E Tt PS CH03 Draw and name all monobromo derivatives of pentane, C5H11Br. Problem 3-33 Name: Draw structures for the following: (a) 2-Methylheptane (d) 2,4,4-Trimethylheptane Problem 3-35 (b) 4-Ethyl-2,2-dimethylhexane (e) 3,3-Diethyl-2,5-dimethylnonane (c) 4-Ethyl-3,4-dimethyloctane 2 (f) 4-Isopropyl-3-methylheptane KNIE>

Problem 3-42 Consider 2-methylbutane (isopentane). Sighting along the C2-C3 bond: (a) Draw a Newman projection of the most stable conformation. (b) Draw a Newman projection of the least stable conformation. Problem 3-44 Construct a qualitative potential-energy diagram for rotation about the C-C bond of 1,2-dibromoethane. Which conformation would you expect to be most stable? Label the anti and gauche conformations of 1,2- dibromoethane. Problem 3-45 Which conformation of 1,2-dibromoethane (Problem 3-44) would you expect to have the largest dipole moment? The observed dipole moment of 1,2-dibromoethane is µ = 1.0 D. What does this tell you about the actual conformation of the molecule?

Answer 2

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 15.SE, Problem 31AP

Interpretation Introduction

Interpretation:

Given that cyclopropanone is highly reactive because of the large angle strain in the molecule. Methylcyclopropenone, although even more strained than cyclopropanone, is quite stable and can even be distilled. Taking the polarity of the carbonyl group into account this observation is to be explained.

Concept introduction:

Carbonyl group is polar as oxygen is more electronegative than carbon. According to Huckel’s rule, any specie that is cyclic, planar and has (4n+2) Ï€ electrons will be aromatic and stable. Thus species with 2, 6, 10, 14 etc. Ï€ electrons will be aromatic and stable.

To explain:

Taking into account the polarity of the carbonyl group, the observation that cyclopropanone is highly reactive because of the large angle strain in the molecule while methylcyclopropenone, although even more strained than cyclopropanone, is quite stable and can even be distilled.

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Answer 3

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 15.SE, Problem 31AP

Interpretation Introduction

Interpretation:

Given that cyclopropanone is highly reactive because of the large angle strain in the molecule. Methylcyclopropenone, although even more strained than cyclopropanone, is quite stable and can even be distilled. Taking the polarity of the carbonyl group into account this observation is to be explained.

Concept introduction:

Carbonyl group is polar as oxygen is more electronegative than carbon. According to Huckel’s rule, any specie that is cyclic, planar and has (4n+2) Ï€ electrons will be aromatic and stable. Thus species with 2, 6, 10, 14 etc. Ï€ electrons will be aromatic and stable.

To explain:

Taking into account the polarity of the carbonyl group, the observation that cyclopropanone is highly reactive because of the large angle strain in the molecule while methylcyclopropenone, although even more strained than cyclopropanone, is quite stable and can even be distilled.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 15.SE, Problem 31AP

Interpretation Introduction