Quiz #3 Ch 8-11
Quiz #3
Ch 8-11
(20 points).
NAME:
(1-10) are True or False. 1)
Alkenes are nucleophiles.
2)
Alkynes have 3 π bonds.
3)
Alcohols are strong acids.
4)
Grignard reagents are good sources of electrophilic carbon atoms.
5)
Oxymercuration-demercuration of alkenes does not allow for carbocation rearrangements whereas acid catalyzed hydration does allow for carbocation rearrangements.
6)
The addition of Br2 to an alkene double bond is an example of electrophilic substitution.
7)
An epoxide is formed by reaction of an alkene and a carboxylic acid.
8)
An epoxide has more ring strain than a cyclopentane.
9)
Anti hydroxylation of an alkene (to give a 1,2-diol) can achieved through epoxidation followed by reaction with acidic water.
10)
Anti hydroxylation of an alkene (to give a 1,2-diol) can be achieved through reaction with osmium tetroxide and hydrogen peroxide.
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(11-15) Draw the products of the following reactions, paying attention to any stereo-/regio-chemistry. 11) D2, Pt
12) Br2
13) H3C
CH2CH3
1) BH3
H
CH2CH3
2) H2O2, NaOH
14) H3C
CH2CH3
H
CH2CH3
HBr, (C6H5CH2O)2
15) C6F5CH2 OH + H3C CH2CO2H
H+
(16-20) Give suitable reagents for the following transformations. 16) O
OH H
17) Br
D
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18)
SH
Br
19)
HO2C
CO2H
20) Ph C C H
Ph C C CH2CH3
*Bonus Question: Which is the more reactive to nucleophiles: carboxylic acids, acid chlorides, alkanes, alkenes or esters?
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Ch 8-11
(20 points).
NAME:
(1-10) are True or False. 1)
Alkenes are nucleophiles.
2)
Alkynes have 3 π bonds.
3)
Alcohols are strong acids.
4)
Grignard reagents are good sources of electrophilic carbon atoms.
5)
Oxymercuration-demercuration of alkenes does not allow for carbocation rearrangements whereas acid catalyzed hydration does allow for carbocation rearrangements.
6)
The addition of Br2 to an alkene double bond is an example of electrophilic substitution.
7)
An epoxide is formed by reaction of an alkene and a carboxylic acid.
8)
An epoxide has more ring strain than a cyclopentane.
9)
Anti hydroxylation of an alkene (to give a 1,2-diol) can achieved through epoxidation followed by reaction with acidic water.
10)
Anti hydroxylation of an alkene (to give a 1,2-diol) can be achieved through reaction with osmium tetroxide and hydrogen peroxide.
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(11-15) Draw the products of the following reactions, paying attention to any stereo-/regio-chemistry. 11) D2, Pt
12) Br2
13) H3C
CH2CH3
1) BH3
H
CH2CH3
2) H2O2, NaOH
14) H3C
CH2CH3
H
CH2CH3
HBr, (C6H5CH2O)2
15) C6F5CH2 OH + H3C CH2CO2H
H+
(16-20) Give suitable reagents for the following transformations. 16) O
OH H
17) Br
D
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18)
SH
Br
19)
HO2C
CO2H
20) Ph C C H
Ph C C CH2CH3
*Bonus Question: Which is the more reactive to nucleophiles: carboxylic acids, acid chlorides, alkanes, alkenes or esters?
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