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26 Cards in this Set
- Front
- Back
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E2 hoffman |
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E2 |
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E2 |
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SN2 |
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E2 Saytzeff |
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E2 |
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SN2 |
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SN2 |
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SN1 OR E1 if theres heat |
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SN2 |
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SN2 |
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SN2 |
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SN1/E1 |
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SN1/E1 |
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SN2 |
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SN2 |
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in a protic solvent, what is the trend of nucleophilic strength? |
nucleophile strength increases as you go down |
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in an aprotic solvent, what is the trend of nucleophilic strength? |
it increases as you go up |
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what is the trend of electronegativity? |
up the column, to the right of the row |
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what is the trend of size? |
down the column, the left of the row |
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what is the 4 question line up to determine which pathway to take SN1,SN2,E1 or E2? |
1. Does the question say what your rxn is? 2. What is the positioning of the Leaving group? 3. Is the nuc/base strong or weak? 4. Is the nuc/base bigger or smaller than CH3CH2OH? - If its bigger, then its considered a base - if its smaller, then its a nuc |
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what are the exceptions in measuring whether a molecule is a nucleophile or base? |
acetate, carbanions and sulfur nucleophiles these are considered nucleophiles (go down SN pathway) |
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what is chemical formula for acetate? |
CH3COOH |
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what is the chemical formula for a carbanion? |
-CX3 |
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how do I make sure that an E2 product comes out antiperiplanar? |
you need to make sure the leaving group and H that your about to break off are facing 180 degrees away from each other, u may have to rotate the main bond, switching the placement of molecules |
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for a bulky base, will it go saitsev or Hoffman? |
hoffman |
