chap 4 - this See Newman projection. Substituted...

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Midterm Results Average = 55. Standard deviation = 18. High score = 102 0 10 20 30 40 50 60 70 80 90 100 0 20 40 60 80 100 Raw Score Percen&le vs Raw Score
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Chapter 4 - Cycloalkanes Names follow the same set of rules as linear alkanes. Alkane names are simply preceded by the word: CYCLO. General formula is C n H 2n . Stereoisomers – same connectivity but different spatial arrangement Ring Strain and torsional strain Ring sizes: Small rings – Cyclopropane, cyclobutane Common rings – Cyclopentane, cyclohexane Large rings – 13-membered and more
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Conformational Freedom To relieve strain rings can pucker and bend. Cyclopropane is not able to do this – See Newman projection.
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Conformational Freedom To relieve strain rings can pucker and bend. Cyclopropane is not able to do this – See Newman projection.
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Conformational Freedom To relieve strain rings can pucker and bend. Cyclopropane is not able to do
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Unformatted text preview: this See Newman projection. Substituted Cycloalkanes Axial and equatorial methylcyclohexanes are not equivalent in energy. Why is this? In methylcyclohexane, one is more stable than the other by 1.7 kcal/mol. Substituted Cycloalkanes Axial and equatorial methylcyclohexanes are not equivalent in energy. Why is this? In methylcyclohexane, one is more stable than the other by 1.7 kcal/mol. Competing for Equatorial Positions Disubstituted cyclohexanes. Fused or Bridged Ring Systems Decalin Fused or Bridged Ring Systems Norbornane, norbornene Summary Nomenclature Ring sizes, Ring strain Angle strain, torsional strain, steric strain Conformational mobility, energy involved in transitions between conformations Newman projections of chairs and boats cis-, trans-, and axial, equatorial relationships Fused ring systems....
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chap 4 - this See Newman projection. Substituted...

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