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Organic And Biological Chemistry

7th Edition
STOKER + 1 other
ISBN: 9781305081079

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Chapter
Section
BuyFindarrow_forward

Organic And Biological Chemistry

7th Edition
STOKER + 1 other
ISBN: 9781305081079
Textbook Problem

The IUPAC name for the carboxylic acid Chapter 5.2, Problem 3QQ, The IUPAC name for the carboxylic acid is a. methylbutanoic acid b. 2-methylbutanoic acid c. is

  1. a. methylbutanoic acid
  2. b. 2-methylbutanoic acid
  3. c. 3-methylbutanoic acid
  4. d. no correct response

Interpretation Introduction

Interpretation:

IUPAC name of the given carboxylic acid has to be chosen from the given options.

Concept Introduction:

For naming a carboxylic acid in IUPAC nomenclature, the suffix “-oic” is added to the parent alkane name.

IUPAC rules for naming a carboxylic acid:

  • The longest parent carbon chain is identified that includes the carboxyl group.
  • The parent chain name is changed by replacing the suffix “-e” with “-oic acid”.
  • Numbering is done in a way that the carboxyl group is designated as number 1.  This is not indicated in the part of the name because for carboxylic acid, the carboxyl carbon is always numbered 1.
  • The identity and location of substituents if any has to be determined and this information has to be added in front of the IUPAC name.
  • If the carboxyl functional group is attached to a ring of carbon atoms, the ring is named and “-carboxylic acid” is added as suffix.
Explanation

Reason for correct option:

Given structure of carboxylic acid is,

The longest continuous carbon chain has to be found out with the carboxyl group in it.  In this it is a four carbon chain.  Hence, the parent alkane is butane.  The carboxylic acid is named by replacing the suffix “-e” in the alkane name with “-oic acid”.  This gives the name of carboxylic acid as butanoic acid.

Looking for substituents it is found that there is a methyl group present on the third carbon atom.  Hence, the IUPAC name of the given carboxylic acid is 3-methylbutanoic acid...

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Sect-5.3 P-1QQSect-5.3 P-2QQSect-5.3 P-3QQSect-5.4 P-1QQSect-5.4 P-2QQSect-5.4 P-3QQSect-5.5 P-1QQSect-5.5 P-2QQSect-5.5 P-3QQSect-5.6 P-1QQSect-5.6 P-2QQSect-5.7 P-1QQSect-5.7 P-2QQSect-5.7 P-3QQSect-5.8 P-1QQSect-5.8 P-2QQSect-5.8 P-3QQSect-5.8 P-4QQSect-5.9 P-1QQSect-5.9 P-2QQSect-5.10 P-1QQSect-5.10 P-2QQSect-5.11 P-1QQSect-5.11 P-2QQSect-5.11 P-3QQSect-5.12 P-1QQSect-5.12 P-2QQSect-5.12 P-3QQSect-5.12 P-4QQSect-5.13 P-1QQSect-5.13 P-2QQSect-5.14 P-1QQSect-5.14 P-2QQSect-5.14 P-3QQSect-5.15 P-1QQSect-5.15 P-2QQSect-5.15 P-3QQSect-5.16 P-1QQSect-5.16 P-2QQSect-5.16 P-3QQSect-5.17 P-1QQSect-5.17 P-2QQSect-5.18 P-1QQSect-5.18 P-2QQSect-5.18 P-3QQSect-5.19 P-1QQSect-5.19 P-2QQSect-5.19 P-3QQSect-5.19 P-4QQSect-5.20 P-1QQSect-5.20 P-2QQSect-5.20 P-3QQSect-5.20 P-4QQCh-5 P-5.1EPCh-5 P-5.2EPCh-5 P-5.3EPCh-5 P-5.4EPCh-5 P-5.5EPCh-5 P-5.6EPCh-5 P-5.7EPCh-5 P-5.8EPCh-5 P-5.9EPCh-5 P-5.10EPCh-5 P-5.11EPCh-5 P-5.12EPCh-5 P-5.13EPCh-5 P-5.14EPCh-5 P-5.15EPCh-5 P-5.16EPCh-5 P-5.17EPCh-5 P-5.18EPCh-5 P-5.19EPCh-5 P-5.20EPCh-5 P-5.21EPCh-5 P-5.22EPCh-5 P-5.23EPCh-5 P-5.24EPCh-5 P-5.25EPCh-5 P-5.26EPCh-5 P-5.27EPCh-5 P-5.28EPCh-5 P-5.29EPCh-5 P-5.30EPCh-5 P-5.31EPCh-5 P-5.32EPCh-5 P-5.33EPCh-5 P-5.34EPCh-5 P-5.35EPCh-5 P-5.36EPCh-5 P-5.37EPCh-5 P-5.38EPCh-5 P-5.39EPCh-5 P-5.40EPCh-5 P-5.41EPCh-5 P-5.42EPCh-5 P-5.43EPCh-5 P-5.44EPCh-5 P-5.45EPCh-5 P-5.46EPCh-5 P-5.47EPCh-5 P-5.48EPCh-5 P-5.49EPCh-5 P-5.50EPCh-5 P-5.51EPCh-5 P-5.52EPCh-5 P-5.53EPCh-5 P-5.54EPCh-5 P-5.55EPCh-5 P-5.56EPCh-5 P-5.57EPCh-5 P-5.58EPCh-5 P-5.59EPCh-5 P-5.60EPCh-5 P-5.61EPCh-5 P-5.62EPCh-5 P-5.63EPCh-5 P-5.64EPCh-5 P-5.65EPCh-5 P-5.66EPCh-5 P-5.67EPCh-5 P-5.68EPCh-5 P-5.69EPCh-5 P-5.70EPCh-5 P-5.71EPCh-5 P-5.72EPCh-5 P-5.73EPCh-5 P-5.74EPCh-5 P-5.75EPCh-5 P-5.76EPCh-5 P-5.77EPCh-5 P-5.78EPCh-5 P-5.79EPCh-5 P-5.80EPCh-5 P-5.81EPCh-5 P-5.82EPCh-5 P-5.83EPCh-5 P-5.84EPCh-5 P-5.85EPCh-5 P-5.86EPCh-5 P-5.87EPCh-5 P-5.88EPCh-5 P-5.89EPCh-5 P-5.90EPCh-5 P-5.91EPCh-5 P-5.92EPCh-5 P-5.93EPCh-5 P-5.94EPCh-5 P-5.95EPCh-5 P-5.96EPCh-5 P-5.97EPCh-5 P-5.98EPCh-5 P-5.99EPCh-5 P-5.100EPCh-5 P-5.101EPCh-5 P-5.102EPCh-5 P-5.103EPCh-5 P-5.104EPCh-5 P-5.105EPCh-5 P-5.106EPCh-5 P-5.107EPCh-5 P-5.108EPCh-5 P-5.109EPCh-5 P-5.110EPCh-5 P-5.111EPCh-5 P-5.112EPCh-5 P-5.113EPCh-5 P-5.114EPCh-5 P-5.115EPCh-5 P-5.116EPCh-5 P-5.117EPCh-5 P-5.118EPCh-5 P-5.119EPCh-5 P-5.120EPCh-5 P-5.121EPCh-5 P-5.122EPCh-5 P-5.123EPCh-5 P-5.124EPCh-5 P-5.125EPCh-5 P-5.126EPCh-5 P-5.127EPCh-5 P-5.128EPCh-5 P-5.129EPCh-5 P-5.130EPCh-5 P-5.131EPCh-5 P-5.132EPCh-5 P-5.133EPCh-5 P-5.134EPCh-5 P-5.135EPCh-5 P-5.136EPCh-5 P-5.137EPCh-5 P-5.138EPCh-5 P-5.139EPCh-5 P-5.140EPCh-5 P-5.141EPCh-5 P-5.142EPCh-5 P-5.143EPCh-5 P-5.144EPCh-5 P-5.145EPCh-5 P-5.146EPCh-5 P-5.147EPCh-5 P-5.148EPCh-5 P-5.149EPCh-5 P-5.150EPCh-5 P-5.151EPCh-5 P-5.152EPCh-5 P-5.153EPCh-5 P-5.154EPCh-5 P-5.155EPCh-5 P-5.156EPCh-5 P-5.157EPCh-5 P-5.158EPCh-5 P-5.159EPCh-5 P-5.160EPCh-5 P-5.161EPCh-5 P-5.162EPCh-5 P-5.163EPCh-5 P-5.164EP

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