IUPAC Nomenclature Quiz

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Questions and Answers

What is the IUPAC substitutive name of glutamine?

  • 2-amino-3-carbamoylpropanoic acid
  • 2-amino-4-carbamoylbutanoic acid (correct)
  • 2-amino-1,5-pentanedioic acid
  • 4-aminopentanoic acid

What is the substitutive IUPAC name of malic acid?

  • 2-aminopropanoic acid
  • 2,3-dihydroxy-1,2-butanedioic acid
  • 2-hydroxy-1,4-butanedioic acid (correct)
  • 2-hydroxypropanoic acid

Which of the following compounds does not contain pyridinic heteroatoms?

  • 4-nitrophenol (correct)
  • benzoic acid
  • ethanal
  • 4-ethoxyaniline

Which family of organic compounds contains pyrrolic heteroatoms?

<p>arylamines (B)</p> Signup and view all the answers

Which compound exhibits π-π conjugation in its structure?

<p>pentadiene-1,3 (D)</p> Signup and view all the answers

What is the IUPAC substitutive name of the compound ethyl 4-aminobenzoate?

<p>ethyl 4-aminobenzoate (A)</p> Signup and view all the answers

Which of the following is an example of a carbocyclic compound?

<p>2-isopropyl-5-methylcyclohexanol (A)</p> Signup and view all the answers

Which compound exhibits p-π conjugation in its structure?

<p>2-hydroxypropanoic acid (B)</p> Signup and view all the answers

What type of bond is formed by end-on overlap of two sp3 hybrid orbitals?

<p>σ-bond (B)</p> Signup and view all the answers

What is the functional group classification of epinephrine (2-methylamino-1-(3,4-dihydroxyphenyl)ethanol)?

<p>phenol, secondary alcohol and secondary amine (B)</p> Signup and view all the answers

What is the functional group classification of 4-hydroxy-3-ethoxybenzaldehyde?

<p>aldehyde, phenol and ether (B)</p> Signup and view all the answers

What type of bond is formed by side-by-side overlap of p-orbitals?

<p>π-bond (C)</p> Signup and view all the answers

What is the classification of the main chain structure of pyrimidine?

<p>heterocyclic compound (A)</p> Signup and view all the answers

What is the classification of glycerol (1,2,3-propanetriol)?

<p>polyfunctional compound (A)</p> Signup and view all the answers

What is the IUPAC substitutive name of the compound 3-carboxy-3-hydroxy-1,5-pentanedioic acid?

<p>3-carboxy-3-hydroxy-1,5-pentanedioic acid (A)</p> Signup and view all the answers

What is one of the functional groups in the structure of procaine (2-(diethylamino)ethyl 4-aminobenzoate)?

<p>an ester group (C)</p> Signup and view all the answers

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Study Notes

Organic Chemistry

IUPAC Nomenclature

  • The IUPAC name of the compound 4-aminobenzoic acid is 4-aminobenzoate.
  • The IUPAC name of the compound 3-carboxy-3-hydroxy-1,5-pentanedioic acid is citric acid.
  • The IUPAC name of threonine is 2-amino-3-hydroxybutanoic acid.
  • The IUPAC name of malic acid is 2-hydroxy-1,4-butanedioic acid.
  • The IUPAC name of glutamine is 2-amino-4-carbamoylbutanoic acid.

Functional Groups

  • 4-hydroxy-3-ethoxybenzaldehyde has aldehyde, phenol, and ether functional groups.
  • 2-isopropyl-5-methylcyclohexanol is a carbocyclic compound.
  • Epinephrine (2-methylamino-1-(3,4-dihydroxyphenyl)ethanol) has phenol, secondary alcohol, and secondary amine functional groups.
  • Procaine (2-(diethylamino)ethyl 4-aminobenzoate) has an ester functional group.

Electronic Structure

  • Pyridinic heteroatoms are found in ethanal.
  • Pyrrolic heteroatoms are found in arylamines and carboxylic acids.
  • π - π conjugation is found in pentadiene-1,3, benzene, and 2-hydroxypropanoic acid.
  • p-π conjugation is found in 2-hydroxypropanoic acid.

Bonding

  • A covalent sigma bond is formed by end-on overlap of two sp3 hybrid orbitals.
  • A covalent π-bond is formed by side-by-side overlap of p-orbitals and can be easily polarized.

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