Section Bank Flashcards

(63 cards)

1
Q

Primary Alcohols are oxidized first to

A

aldehydes

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2
Q

Secondary Alcohols are oxidized to

A

Ketones

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3
Q

Primary Alcohols are fully oxidized to

A

carboxylic acids

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4
Q

aldehydes are oxidized to

A

carboxylic acids

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5
Q

Alkanes are oxidized to

A

carboxylic acids

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6
Q

alkenes are oxidized to

A

aldehyde or ketone, carboxylic acid, diols, epoxide

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7
Q

Alkynes are oxidized to

A

carboxylic acids

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8
Q

Diols are oxidized to

A

aldehydes

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9
Q

ketones are oxidized to

A

esters

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10
Q

aldehydes are reduced to

A

primary alcohols

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11
Q

ketones are reduced to

A

secondary alcohols

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12
Q

amides are reduced to

A

primary amines

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13
Q

carboxylic acids are reduced to

A

primary alcohols

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14
Q

Esters are reduced to

A

primary alcohols

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15
Q

Enolate intermediates form during

A

keto and enol resonance in carbonyl groups (keto more stable)

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16
Q

Oxidation

A

loss of electrons

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17
Q

Reduction

A

gain of electrons

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18
Q

Mesylates and Tosylates are used to

A

make alcohols better leaving groups or as protecting groups

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19
Q

Mesylates and Tosylates are formed by

A

protonating alcohols

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20
Q

Mesylates contain what functional group?

A

-SO3CH3

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21
Q

Tosylates contain what functional group?

A

-SO3C6H4CH3

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22
Q

Quinones and HydroxyQuinones are produced by

A

treating phenols with oxidizing agents, first oxidized to quinone and then to hydroxyquinone

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23
Q

Quinones and hydroxyquinones are electrophilic or nucleophilic?

A

electrophilic

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24
Q

Nucleophilic Addition of an aldehyde produces

A

an alcohol

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25
Hydration of aldehydes and ketones produces
geminal diols
26
Aldehydes and ketones treated with one equivalent of alcohol produce
hemiacetyls/hemiketals
27
Aldehydes and ketones treated with two equivalents of alcohol produce
acetyls/ketals
28
Imines are produced by:
ketones or aldehydes undergo an addition of nitrogen from ammonia (condensation/nucleophilic substitution)
29
Enamines and Imines
are formed by tautomerization
30
Cyanohydrins are produced by
hydrogen dissociates from HCN and the nucleophilic CN anion attacks the carbonyl carbon on aldehydes and ketones followed by reprotonation
31
Aldol Condensation
aldehyde or ketone acts as an electrophile and a nucleophile to create an aldol that contains an aldehyde and an alcohol group
32
When is a reaction under Kinetic Control?
with temperatures are lower, and reaction proceeds quickly
33
Products under kinetic control are more or less stable?
less
34
When is a reaction under thermodynamic control?
when temperatures are higher and the reaction will proceed slower
35
Products under thermodynamic control are more or less stable?
more
36
Thin Lens Formula
1/o + 1/i = 1/f
37
Sound Intensity Calculation
I (dB) = 10 log [I/Io]
38
Calculating Keq from ΔG (standard state)
ΔG(ss) = -RT ln Keq Keq = e ^-ΔG(ss)/RT
39
When there is a negative formal charge the electron configuration has:
more electrons
40
When there is a positive formal charge the electron configuration has:
less electrons
41
When removing electrons in a electron configuration they are removed from the
outermost shell (goes by the NUMBER in front)
42
Vmax is
the maximum rate of the reaction, the y-axis intercept on a Line Weaver- Burk Plot
43
Michaelis Menton Equation
Vo = Vmax [S] / Km + [S]
44
Michaelis Constant (Km)
is the concentration of substrate when our reaction speed is half of Vmax (the x-axis intercept on a Lineweaver-Burk Plot)
45
Kcat Equation
Kcat= Vmax/[E]t
46
Catalytic Efficiency Equation
Kcat / Km
47
Kcat is the
enzyme turnover number
48
To increase catalytic efficiency:
increase Kcat or decease Km
49
Glycoside Formation
anomeric carbon undergoes nucleophilic attack and a functional group is added creating a glycosidic linkage (R-O-R)
50
Aldose vs Ketose
Aldose: one -CH2OH group Ketose: two -CH2OH groups
51
How many H bonds in A-T nucleotide bonds:
2
52
How many H bonds in C-G nucleotide Bonds:
3
53
Purines
A and G (2 rings)
54
Pyrimidines
C and T (1 ring)
55
Intermediate in an nucleophilic acyl substitution
tetrahedral
56
Condensation of 2 carboxylic acids forms an
anhydrides
57
Decarboxylation is the
loss of a carboxyl group as CO2 and replaced with a hydrogen
58
Soaponification
reaction with long chain fatty acids and NaOH or KOH to create a salt (soap), that has a nonpolar tail and a polar carboxylate head
59
Peptide bonds are formed between the
carbonyl carbon and the N of the next peptide residue
60
Peptide bonds are formed via:
condensation reactions
61
SN1
2 steps intermediate has a carbocation the MORE substituted the more stable racemic mixture
62
SN2
1 step back side attack creating an inversion in stereochemistry the LESS substituted the carbon the more stable
63
Ternary Complex formed with
2 substrate molecules and an enzyme