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Organic Chemistry Lecture II

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  1. What E1 reaction yields synthesis of an alkene?
    • Dehydrohalogenation
    • alkylhalide + strong bulky base
    • - proton ripped and halogen drops off in ONE STEP!!!
    • Image Upload 1
  2. What E2 reaction yields an alkene as a product?
    • Dehydration of an Alcohol
    • alcohol + hot strong acid
    • - hydroxyl is protonated leaves as water, carbocation forms, follows Zeitzeff Rule!!!
    • Image Upload 2
  3. What is the order of carbocation stability? What confers the stability? What is the name of this rule?
    3terciary -- 2secondary -- 1primary -- methyl

    "Electron donating" methyl groups.

    Zeitzeff Rule
  4. What is the product of a "catalytically hydrogenated" alkene and what type of addition are the hydrogens added?
    • A saturated alkane with syn addition.
    • Image Upload 3
  5. What reactant oxidizes an alkene and what 3 possible product(s) are yielded?
    O3 ozone

    • Carboxylic acid, Ketone, Aldehyde
    • Double bond broken to yield carbonyl group at both ends!
  6. What happens to an alkene when in the presence of a hydrogen halide?
    Alkyl halide: electrophilic addition of the least substituted carbon, possible skeletal rearrangement, addition of halide to carbocation.
  7. When does addition of a hydrogen halide proceed anti-Markomnikov?
    Radical Reaction: In the presence of Peroxides and ONLY H-Br will add anti-Markov.
  8. How is an alcohol synthesized from an alkene?
    Hydration of an alkene: Cold dilute acid will protonate the least substituted carbon and the resulting carbocation will bind to the hydroxyl group.
Author
jroxz
ID
18122
Card Set
Organic Chemistry Lecture II
Description
Continually expanding understanding of ORGO material for MCAT
Updated
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