OrganicFallChpt9

OrganicFallChpt9 - Chapter 9 homework: All in chapter...

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Chapter 9 homework: All in chapter problems End of Chapter problems: 19, 23, 24, 26, 27, 30, 31, 33 Bonus problems Show a synthesis for the following compound from their respective starting material HO H H OH O
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Chapter 9: Alkynes Alkynes C-C triple bonds Naming regimen is the same as alkenes, with the suffix -yne inserted instead of -ene Note that the carbons on the ends of the triple bond can only have one other bond 180 degree bond angle Physical properties of alkynes are similar to alkanes and alkenes Important to note that alkynes are more reactive • Important difference is acidity, which we’ll get into in a bit. Sp hybridized carbons • Two p-orbitals which are perpendicular to each other
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• Due to the 180 degree bond angle between the σ -bonds, the shape of an alkyne is linear Bond length on average is 120 pm for alkynes 134 for alkenes – 150 for alkanes Bond dissociation energy for alkynes is higher More bonds to break, more energy
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OrganicFallChpt9 - Chapter 9 homework: All in chapter...

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