SN1 and SN2 reactions Flashcards

learning SN1 and SN2 reactions

1
Q

OH- nu

A

R-OH
(alcohol)

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2
Q

R’O-

A

R-OR
(ether)

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3
Q

-SH

A

R-SH
(thiol)

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4
Q

-CN

A

r-CN
(nitrile)

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5
Q

R’COO-

A

R-COOR_
(ester)

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5
Q

R’C (triple bond) C-

A

R-C (triple bond) CR’
(alkyne)

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6
Q

NR’3

A

R-+NR’3. X-
(quaternary ammonium halide)

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7
Q

N3-

A

R–N3
(alkyl azide)

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8
Q

The product of an SN1 reaction will be a _____ mixture

A

racemic

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9
Q

how many steps in an SN2 reaction?

A

1 step

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10
Q

What kind of intermediate is in an SN1 reaction?

A

carbocation intermediate

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11
Q

If the products of SN1 reactions are racemic then they are ____

A

enantiomers

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12
Q

what is an enantiomer?

A

two molecules are mirror images of eachother

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13
Q

solvolysis

A

reaction in which the nucleophile is a molecule of a solvent

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14
Q

exergonic

A

transition state resembles the reactant side more

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15
Q

endergonic

A

transition state resembles the product side more

16
Q

diastereomers

A

when molecules have some configurations in common and some are different

17
Q

SN1 have what solvents?

A

protic solvents

18
Q

SN2 have what solvents?

A

aprotic

19
Q

SN1 is to what degree?

A

tertiary and secondary

20
Q

the nucleophile in SN1 if OFTEN what?

A

neutral

21
Q

the nucleophile in SN2 is OFTEN what?

A

negatively charged

22
Q

SN2 is to what degree?

A

primary and secondary

23
Q

SN1 reactions _______ depend on the strength/concentration of the nucleophile

A

do not

24
Q

SN2 reactions______ depend on the strength/concentration of the nucleophile

A

do (because good nucleuophiles react fast)

25
Q

protic

A

hydrogen attached to negative elament

26
Q

aprotic

A

no hydrogen attached to electro negative element

27
Q

DMF

A

aprotic

28
Q

DMSO

A

aprotic

29
Q

acetone

A

aprotic

30
Q

HMPA

A

aprotic

31
Q

water

A

protic

32
Q

methanol

A

protic

33
Q

ethanol

A

protic

34
Q

ammonia

A

protic