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Alkynes: Electrophilic Addition, Redox Reactions, and Properties (CHEM-201 Lecture 14)

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Alkyne Hydration

  • Vinyl alcohols yield tautomers.
    03:51
  • Markovnikov addition of alcohols yields ketones.
    03:29

Alkyne Hydrohalogenation

  • Double hydrohalogenation of alkynes.
    02:20
  • General properties of double addition reactions to alkynes.
    01:01

Alkyne Halogenation

  • Double halogenation of alkynes.
    02:15

Alkyne Hydroboration

  • Anti-Markovnikov addition of alcohols to terminal alkynes yields aldehydes
    02:43

Hydrogenation of Alkynes

  • Using Dissolving Metal Reduction or Lindlar’s Catalyst to turn alkynes to alkenes.
    06:08
  • Using Catalytic hydrogenation or Wilkinson’s Catalyst to turn alkynes to alkanes.
    03:46
  • The definition of hydrogenation.
    00:48

Acetylide

  • Understanding how to convert terminal alkynes to alkynides.
    04:19
  • Predict the final product of the following reaction sequence.
    02:29
  • Using double dehydrohalogenation to perform alkynide synthesis.
    02:57

Overview of Chemical Reactions

  • Recognizing Substitution Reactions.
    01:34
  • Recognizing Acid-Base Reactions.
    02:43
  • Recognizing Elimination Reactions.
    00:40

Molecular Orbital Theory

  • Sigma bond vs. pi bond, which is stronger?
    03:25
  • What’s the difference between sigma and pi bonds?
    02:19
  • What’s the difference between atomic and molecular orbitals?
    11:25

Intermolecular Forces

  • How dipole-dipole forces work.
    01:46
  • How IMFs are related to melting and boiling points.
    03:08
  • How Van der Waals forces work.
    03:01

Naming Alkenes

  • Name the following alkene
    02:04
  • How to name alkenes and alkynes
    01:55

Index of Hydrogen Deficiency (Structural)

  • Is the following molecule saturated?
    00:30
  • What is the IHD of the following molecule?
    00:45
  • What index of hydrogen deficiency is.
    01:15