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Stereochemistry: Isomerism, Chirality, and Optical Activity

주석실무비디오 수업

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Constitutional Isomers

  • Isomeric Relationships
    03:28
  • Using the flowchart to determine isometric relationships.
    05:02
  • Isomeric Relationships
    02:56

Cis vs Trans

  • Why we need to use the E/Z naming system
    02:07
  • What does E and Z stand for?
    00:50
  • How to name different types of double bonds or rings
    04:28

Chirality

  • Drawing Mirror Images and Determining Chirality
    03:24
  • What is chirality?
    05:10
  • Drawing Mirror Images and Determining Chirality
    03:44

Chirality Test 1 - Internal Line of Symmetry

  • Determining Chirality with Plane of Symmetry
    00:25
  • Determining Chirality with Plane of Symmetry
    01:10
  • How and when to use the internal line of symmetry test.
    01:25

Chirality Test 2 - Stereocenters

  • Determining Chirality using Stereocenter
    02:25
  • Determining Chirality using Stereocenter
    00:36
  • The difference between chiral and trigonal centers.
    02:38

Cahn-Ingold-Prelog Nomenclature

  • R and S Naming- Step 4
    03:07
  • Why stereoisomers need their own naming system.
    01:48
  • Determining Priorities
    01:19

Optical Activity

  • Specific rotation vs. observed rotation.
    05:43

Types of Stereoisomers

  • Determine total number of stereoisomers
    00:49
  • How to predict the total number of stereoisomers.
    01:03
  • Draw stereoisomers and determine relationship
    07:41

Meso Compounds

  • Defining meso compounds.
    01:40
  • The 3 rules of meso compounds.
    04:10
  • Which of the following molecules are meso?
    03:44

Fischer Projection

  • Introduction to different projections.
    01:15
  • How to convert Fischer projections into bondline structures
    05:45
  • Convert the following Fischer projection into bondline structure.
    03:38

Enantiomeric Excess

  • Calculating Enantiomeric Excess and Observed Rotation
    00:50
  • How to calculate enantiomeric excess.
    04:21
  • Calculating Enantiomeric Excess and Observed Rotation
    03:59

Atropisomers

  • Is the following substituted biphenyl chiral?
    00:29
  • Is the following substituted biphenyl chiral?
    00:45
  • Is the following allene chiral?
    00:35

Cis vs Trans Conformations

  • Is the following cyclohexane cis or trans?
    00:44
  • How to draw chairs.
    01:18
  • Is the following cyclohexane cis or trans?
    00:27