Exam 1 - Alcohols Flashcards

1
Q

___, ___, and ___ alcohols can react with sulfonate esters + base.

A

primary, secondary, and tertiary

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2
Q

The larger the alcohol, the ___ acidic.

A

less

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3
Q

___ can need heat.

A

E1

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4
Q

Alcohols reacting with sulfonate esters lead to ___ of stereochemistry in the final product.

A

retention

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5
Q

Alcohols reacting with PBr3 lead to ___ of stereochemistry in the final product.

A

inversion

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6
Q

___, ___, and ___ alcohols can react with sulfonate esters.

A

primary, secondary, tertiary

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7
Q

You can react an alcohol directly with a ___, in order to create an alkoxide.

A

metal (M = Li, Na, K)

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8
Q

Primary branched alcohols reacting with strong acids can lead to ___ ___.

A

carbocation rearrangements

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9
Q

SN2/E2 are faster in ___ ___ solvents.

A

polar aprotic (polar no OH)

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10
Q

The mechanism of alcohols reacting with sulfonate esters also requires ___ in order to deprotonate the LG.

A

NEt3 (a base)

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11
Q

Two examples of bases used in alcohol reactions:

A

NEt3 and pyridine

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12
Q

An alcohol reacting with H2SO4 will produce a(n) ___ via an ___ mechanism.

A

alkene, elimination

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13
Q

An alcohol is a ___ attached to a ___ carbon.

A

-OH, sp3

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14
Q

E2 needs a ___/___ base.

A

strong/bulky base

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15
Q

___/___ are faster in polar protic solvents.

A

SN1/E1

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16
Q

___ and ___ alcohols can react with SOCl2/SOBr2 + base.

A

primary, secondary

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17
Q

Alcohols reacting with SOCl2 and NEt3 lead to ___ of stereochemistry in the final product.

A

inversion

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18
Q

Bigger alcohols are less acidic, because it is harder to stabilize the ___ ___.

A

conjugate base

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19
Q

___, ___, and ___ alcohols can react with H2SO4.

A

primary, secondary, tertiary

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20
Q

The ___ the alcohol, the less acidic.

A

larger

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21
Q

Usually the more substituted alkene is favored (___ Rule).

A

Zaitsev’s Rule

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22
Q

Remember: ___ ___ can happen in SN1 and E1 reactions!

A

carbocation rearrangements

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23
Q

___ = Deprotonated alcohol.

A

alkoxide

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24
Q

In alcohols reacting with strong acids (HBr, HI, HCl): ___ reacts faster than ___ which reacts faster than ___.

A

tertiary, secondary, primary

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25
An alcohol can react with ___ to produce an alkene via elimination.
H2SO4
26
A base needs to be ___ orders of magnitude higher in order to deprotonate the alcohol.
3
27
Only ___ and ___ alcohols can react with SOCl2 and NEt3.
primary, secondary
28
SN2 mechanism leads to \_\_\_.
inversion
29
You can react an alcohol with a ___ \_\_\_ in order to deprotonate the alcohol.
strong base (i.e. NaH)
30
Alcohols can react with PBr3 in order to produce a ___ of the OH with a ___ group.
substitution, Br group
31
Alcohols reacting with strong acids (HBr, HCl, HI) are good for ___ and ___ alcohols.
tertiary, primary (unbranched)
32
Remember: In all chemistry, ___ chemistry always happens first! (It is the fastest). I.e.: Look out for ___ or \_\_\_.
acid-base chemistry, protonation, deprotonation
33
Alcohols can react with SOCl2 and NEt3 (base) to produce a ___ of the OH with a ___ group.
substitution, Cl group
34
\_\_\_ needs a strong/bulky base.
E2
35
vicinal diol - OHs attached to ___ \_\_\_.
adjacent Cs
36
SN1/E1 are faster in ___ \_\_\_ solvents.
polar protic (polar w/ OH)
37
Only ___ and ___ alcohols can react with PBr3.
primary, secondary
38
Remember: ___ are formed in SN1 and E1 reactions!
carbocations
39
A secondary alcohol reacting with PBr3 will go through a ___ mechanism.
SN2
40
\_\_\_ ___ - OHs attached to adjacent Cs.
vicinal diol
41
A primary alcohol reacting with a strong acid (HBr, HCl, HI) goes through a ___ mechanism.
SN2
42
Vicinal diols reacting with H2SO4 have a ___ \_\_\_ in their mechanism which leads to their unique final product.
carbocation rearrangemnet
43
Carbocation group shifting, in order from fastest to slowest: ___ \> ___ \> ___ \_\_\_ \> \_\_\_
tertbutyl \> isopropyl \> primary alkyl \> methyl
44
The product of alcohols reacting with sulfonate esters is -OH becoming \_\_\_.
-OTS
45
E1 can need \_\_\_.
heat
46
The mechanism of alcohols reacting with SOCl2 and NEt3 requires a ___ to deprotonate the LG before it leaves.
base
47
\_\_\_/\_\_\_ are faster in polar aprotic solvents.
SN2/E2
48
\_\_\_ and ___ alcohols can react with PBr3.
primary, secondary
49
\_\_\_ and ___ alcohols can react with strong acid (i.e. HI, HBr, HCl).
primary (unbranched), tertiary
50
Alcohols can react with sulfonate esters to create one ___ \_\_\_ \_\_\_.
large good LG
51
A secondary alcohol reacting with a strong acid (HBr, HCl, HI) goes through a ___ mechanism.
SN1
52
SN1/E1 are faster in polar protic (polar w/ OH) solvents, because the OH helps stabilize the \_\_\_.
carbocation.
53
Examples of sulfonate esters reacting with Alcohol (along with a base of course):
TsCl, MsCl, Tf2O
54
The mechanism for an alcohol reacting with PBr3 is like ___ \_\_\_ reactions.
two SN2
55
Usually the ___ substituted alkene is favored (Zaitsev's Rule).
more
56
A tertiary alcohol reacting with a strong acid (HBr, HCl, HI) goes through a ___ mechanism.
SN1
57
In sulfonate ester reactions with alcohols, the ___ is still in the final product (NOT kicked out!)
oxygen (O)
58
Primary alcohols reacting with H2SO4 will go through a ___ mechanism. Secondary and Tertiary alcohols reacting with H2SO4 will go through a ___ mechanism.
E2, E1
59
\_\_\_ alcohols reacting with H2SO4 will go through a E2 mechanism. ___ and ___ alcohols reacting with H2SO4 will go through a E1 mechanism.
Primary, Secondary and Tertiary
60
You can react an alcohol with a ___ \_\_\_ to make it a good leaving group
strong acid (i.e. HBr)
61
\_\_\_ mechanism leads to inversion.
SN2