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11 Cards in this Set
- Front
- Back
Which will proceed faster, a reaction with -SCH3 or S(CH3)2 ?
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-SCH3, anions are more nucleophilic than neutral molecules. Therefore reactions with anions proceed faster
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Which will proceed faster, a reaction with -N(CH3)2 or -O(CH3)2 ?
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-N(CH3)2, Nitrogen is less electronegative (farther to the left on PT) and therefore more nucleophilic. (same row same charge)
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Which will proceed faster, a reaction with +Se(CH3)2 or +Te(CH3)2 ?
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+Te(CH3)2 more polarizable, more Nucleophilic (same column same charge)
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Which will produce a better leaving group, a reaction which proceed under acidic conditions and there for forms H2O or non acidic conditions?
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Acidic conditions which forms H2O or other stable neutral product which proceeds faster. not a -OH as in a non acidic reaction.
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Which will produce a better leaving group and therefore a faster reaction, a reaction which results in I-, F-,OH-?
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I is a conjugate base of the strong acid HI which makes it the best leaving group, F- is the conjugate strong base of HF, weak acid, and -OH is a strong base
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A reaction that gives one stereoisomer (out of a few possible)
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Stereoselective
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A class of reactions in which stereo isomeric starting material gives stereo isomeric products.
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Stereospecific
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Stereo isomeric starting materials which gives the same single stereo isomeric product.
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each reaction is stereoselective but the class is not sterospecific
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In SN2 reaction which has a faster rate of reaction: 1st degree, 2nd degree or 3rd degree?
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1st degree; 3rd degree are nonsense detectors
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Reactions always proceeds with inversion
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SN2
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In SN1 reaction which has a faster rate of reaction: 1st degree, 2nd degree or 3rd degree?
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3rd degree
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