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Ch.4 - The Study of Chemical Reactions
Wade - Organic Chemistry 9th Edition
Wade9th EditionOrganic ChemistryISBN: 9780135213728당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Wade 9th EditionCh.4 - The Study of Chemical Reactions문제 43(1)a,b
4장, 문제 43(1)a,b

For each alkane,
1. draw all the possible monochlorinated derivatives.
a. Cyclopentane
b. Methylcyclopentane

검증된 단계별 안내
1
Step 1: Understand the concept of monochlorination. Monochlorination involves replacing one hydrogen atom in an alkane with a chlorine atom, resulting in a single chlorinated product. For each unique hydrogen environment in the molecule, a different monochlorinated derivative can be formed.
Step 2: Analyze the structure of cyclopentane. Cyclopentane is a cyclic alkane with the molecular formula C5H10. All the hydrogen atoms in cyclopentane are equivalent due to its symmetrical structure. Therefore, replacing any one hydrogen atom with a chlorine atom will result in only one unique monochlorinated derivative.
Step 3: Analyze the structure of methylcyclopentane. Methylcyclopentane is a substituted cycloalkane with a methyl group (-CH3) attached to the cyclopentane ring. The molecular formula is C6H12. In this case, the hydrogens on the ring and the hydrogens on the methyl group are in different environments. Identify the unique hydrogen environments: (a) hydrogens on the methyl group, (b) hydrogens on the carbons adjacent to the methyl group, and (c) hydrogens on the other carbons in the ring.
Step 4: Draw the monochlorinated derivatives for methylcyclopentane. Replace one hydrogen atom from each unique environment identified in Step 3 with a chlorine atom. This will result in multiple unique monochlorinated derivatives, each corresponding to a different hydrogen environment.
Step 5: Verify the uniqueness of each derivative. Ensure that no two derivatives are identical by checking for symmetry in the molecule. For example, if two hydrogens are in equivalent positions due to the molecule's symmetry, replacing either of them will result in the same product.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
2m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Alkanes

Alkanes are saturated hydrocarbons consisting only of carbon and hydrogen atoms, connected by single bonds. They follow the general formula CnH2n+2, where 'n' is the number of carbon atoms. Understanding the structure and properties of alkanes is essential for predicting their reactivity, particularly in substitution reactions like chlorination.
추천 영상:
02:47
Functionalizing Alkanes

Chlorination Reaction

Chlorination is a type of substitution reaction where a hydrogen atom in an alkane is replaced by a chlorine atom. This process typically involves free radical mechanisms, initiated by heat or light, leading to the formation of monochlorinated derivatives. Recognizing the potential sites for chlorination on cyclic and branched alkanes is crucial for drawing all possible derivatives.
추천 영상:
03:
Specific Reactions - Allylic Chlorination

Stereochemistry

Stereochemistry refers to the spatial arrangement of atoms in molecules and how this affects their chemical properties. In the case of chlorinated derivatives, different stereoisomers can form due to the presence of chiral centers or different spatial orientations. Understanding stereochemistry is important for accurately representing and naming the various monochlorinated products of cyclopentane and methylcyclopentane.
추천 영상:
가이드 코스
1:38
Polymer Stereochemistry Concept 1
관련 실천
교과서 질문

Use the information in Table 4-2 (p. 167) to rank the following radicals in decreasing order of stability.

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교과서 질문

Use bond-dissociation enthalpies (Table 4-2, p. 167) to calculate values of ΔH° for the following reactions.

c. (CH3)3C—OH + HCl → (CH3)3C—Cl + H2O

1225
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교과서 질문

For each alkane,

3. which monobrominated derivatives could you form in good yield by free-radical bromination?

c. 2-methylpentane

d. 2,2,3,3-tetramethylbutane

1545
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교과서 질문

Use bond-dissociation enthalpies (Table 4-2, p. 167) to calculate values of ΔH° for the following reactions.

d. CH3CH2CH3 + H2 → CH3CH3 + CH4

1348
views
교과서 질문

For each alkane, which monobrominated derivatives could you form in good yield by free-radical bromination?

a. Cyclopentane

b. Methylcyclopentnae

1190
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교과서 질문

For each alkane,

2. determine whether free-radical chlorination would be a good way to make any of these monochlorinated derivatives. Will the reaction give mostly one major product?

a. Cyclopentane

b. Methylcyclopentane

932
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