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CHEM-245 Exam 3 Review: Elimination Reactions, NMR & IR Spectroscopy, and Alcohol Reactions

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Alkene Stability

  • Heat of Combustion
    02:55
  • Understanding trends of alkene stability.
    04:28

Recognizing Different β-Hydrogens

  • Identify the number of unique products
    02:08
  • Identify the number of unique products
    03:19
  • Identify the number of unique products
    02:02

E2 Mechanism

  • Understanding the properties of E2.
    04:42
  • Drawing the E2 Mechanism.
    09:36
  • Rank reactivity toward E2
    02:03

The E1 Mechanism

  • Understanding the properties of E1.
    03:32
  • Drawing the E1 Mechanism.
    08:09

Zaitsev Rule

  • Hofmann product
    02:39
  • Defining Zaitsev’s Rule
    01:18
  • Zaitsev product
    07:01

NMR Spectroscopy

  • General NMR Features
    10:06

1H NMR:Number of Signals

  • General Assumption for 1H NMR Signals
    04:35
  • Identifying Proton Signals
    02:02
  • Identifying Proton Signals
    01:55

Infrared Spectroscopy

  • General Features of IR Spect
    16:04

Alcohol Synthesis

  • Forming alcohols through SN2 reactions.
    01:44
  • Forming alcohols through Acid-Catalyzed Hydration.
    02:02
  • Forming alcohols through Hydroboration-Oxidation.
    01:37

Leaving Group Conversions - Using HX

  • Why do we need to convert Alcohol into a good leaving group?
    02:03
  • Using HX acids via SN2 reaction.
    02:16
  • Using HX acids via SN1 reaction.
    07:20

SN1 Reaction

  • Drawing the SN1 Mechanism
    10:49
  • Why highly substituted leaving groups favor SN1.
    01:13
  • Understanding the properties of SN1.
    08:16

The SN2 Mechanism

  • Ranking reactivity toward SN2
    04:03
  • Drawing the SN2 Mechanism
    08:33
  • Understanding the properties of SN2.
    11:57