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Ch. 21 - Carboxylic Acid Derivatives
Wade - Organic Chemistry 9th Edition
Wade9th EditionOrganic ChemistryISBN: 9780135213728당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Wade 9th EditionCh. 21 - Carboxylic Acid Derivatives문제 42d,e
21장, 문제 42d,e

Draw structures to correspond with the following common and systematic names:
(d) N-butylacetamide
(e) N,N-dimethylformamide

검증된 단계별 안내
1
Step 1: Understand the naming conventions for amides. Amides are derivatives of carboxylic acids where the hydroxyl group (-OH) is replaced by an amino group (-NH2, -NHR, or -NR2). The 'N-' prefix indicates substitution on the nitrogen atom of the amide group.
Step 2: For N-butylacetamide, break down the name: 'N-butyl' indicates a butyl group attached to the nitrogen atom of the amide, and 'acetamide' refers to the amide derived from acetic acid (CH3COOH). Draw the acetamide structure first, which includes a carbonyl group (C=O) bonded to a nitrogen atom. Then attach a butyl group (CH3CH2CH2CH2-) to the nitrogen atom.
Step 3: For N,N-dimethylformamide, break down the name: 'N,N-dimethyl' indicates two methyl groups attached to the nitrogen atom of the amide, and 'formamide' refers to the amide derived from formic acid (HCOOH). Draw the formamide structure first, which includes a carbonyl group (C=O) bonded to a nitrogen atom. Then attach two methyl groups (CH3-) to the nitrogen atom.
Step 4: Ensure the connectivity and geometry of the molecules are correct. For N-butylacetamide, confirm that the butyl group is directly bonded to the nitrogen atom, and for N,N-dimethylformamide, confirm that both methyl groups are bonded to the nitrogen atom. Verify that the carbonyl group is correctly positioned in both structures.
Step 5: Label the structures clearly to distinguish between N-butylacetamide and N,N-dimethylformamide. Highlight the functional groups and substituents to ensure clarity in the representation of the molecules.

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주요 개념

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

Functional Groups

Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. In the case of N-butylacetamide, the amide functional group (-C(=O)N-) is crucial for its structure and reactivity. Understanding functional groups helps in predicting the behavior of organic compounds and their interactions.
추천 영상:
02:36
Identifying Functional Groups

IUPAC Nomenclature

IUPAC nomenclature is a systematic method of naming organic chemical compounds based on their structure. It provides a standardized way to identify compounds, such as N-butylacetamide and N,N-dimethylformamide, by indicating the types and positions of functional groups. Familiarity with IUPAC rules is essential for accurately interpreting and drawing chemical structures.
추천 영상:
03:43
The different parts of an IUPAC name

Structural Representation

Structural representation refers to the way in which the arrangement of atoms in a molecule is depicted, including bond types and connectivity. For example, drawing N-butylacetamide involves illustrating the butyl group attached to the acetamide structure. Mastery of structural representation is vital for visualizing and understanding the three-dimensional shape and properties of organic molecules.
추천 영상:
05:09
Representations of L-Configuration
관련 실천
교과서 질문

For each heterocyclic compound,

(i) explain what type of acid derivative is present.

(ii) show what compounds would result from complete hydrolysis.

(iii) are any of the rings aromatic? Explain.

(e)

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교과서 질문

Draw structures to correspond with the following common and systematic names:

(f) benzoic propionic anhydride

(g) benzamide

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교과서 질문

Draw structures to correspond with the following common and systematic names:

(h) γ-hydroxyvaleronitrile

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교과서 질문

Draw structures to correspond with the following common and systematic names:

(k) phenyl isocyanate

(l) cyclobutyl ethyl carbonate

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교과서 질문

For each heterocyclic compound,

(i) explain what type of acid derivative is present.

(ii) show what compounds would result from complete hydrolysis.

(iii) are any of the rings aromatic? Explain.

(f)

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교과서 질문

Draw structures to correspond with the following common and systematic names:

(a) phenyl formate 

(b) cyclohexyl benzoate 

(c) cyclopentyl phenylacetate

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