Analyzing organic reaction Flashcards

1
Q

Lewis Acid

A

Electron acceptor , electrophile and has a vacant P orbital where electrons can be accepted

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2
Q

Lewis Based

A

Electron Donor; nucleophile, have a lone pair of electrons that can be donated

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3
Q

Coordinate covalent bond

A

Acid base form this

In this both the electrons come from one of the atoms involved

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4
Q

Brownsted Lowry Acid

A

Donates a proton

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5
Q

Brownsted Lowry Base

A

Accepts a proton

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6
Q

Functional groups from weak acid to strong acid

A

Alkane, alkene, hydrogen (H-H), amine, alkyne, ester, ketonel/aldehyde, alcohol, water, carboxylic acid, hydronium ion

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7
Q

Bond strength decreases down the table so how does that relate to acidity?

A

lower bond strength = greater acidity

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8
Q

Higher electronegativity = what acidity

A

Higher electronegativity = higher acidity

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9
Q

What functional groups act as acids

A

Alcohols, aldehydes, ketones, carboxylic acids and its derivitives

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10
Q

What functional groups act as bases?

A

Amines and amides

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11
Q

Nucleophile

A

Nucleus loving
Lone pars or pie bond that can form new bonds with electrophiles
Good bases CHON with negative sign

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12
Q

Nucleophilicity based on

A
  1. Charge: greater charge= better nu
  2. Electronegativity: greater E= lower Nu
  3. Steric hinderance: Larger = lower Nu
  4. Solvent: Protic solvent= lower Nu
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13
Q

Polar protic solvent

A

Nucleophilicity increases down the periodic table

I > Br> Cl> F

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14
Q

Aprotic Solvent

A

Nucleophilicity increases up the periodic table

F> Cl> Br> I

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15
Q

Strong acids

A
HClO4
HClO3
H2SO4
HI
HBr
HCl
HNO3
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16
Q

Strong Base

A
LiOH
NaOH
KOH
RbOH
CsOH
Ca(OH)2
Sr(OH)2
Ba(OH)2
17
Q

Examples of Protic solvents

A

Carboxylic acid
Ammonia/amines
Water/alcohol

18
Q

Aprotic solvents examples

A

DMF
DMSO
Acetone

19
Q

In SN1 rate is dependent on

20
Q

SN1 uses what kind of nucleophile

A

Weak nucleophile or base and polar protic solvents

21
Q

SN1 reacts with

A

tertiary or secondary

22
Q

SN2 reacts with

A

Primary or secondary and strong nucleophile and polar aprotic solvent

23
Q

Good leaving groups

A

Stabilize electrons, weak bases so conjugate bases of strong acid, resonance and induction

24
Q

Oxidation

A

Loss of electrons

Greater number of bonds to O or hetroatom

25
Reduction
Gain of electrons | Greater number of bonds to H
26
Levels of oxidation
o: no bonds to hetroatoms: alkane 1: Alcohols, alkyl halides and amines 2: aldehydes, ketones and imines 3. Carboxylic acids, anhydrides, esters and amides 4: (4 bond to hetroatom) carbon dioxide
27
Pyridinium chlorochromate
Weak oxidizing agent and oxidizes an alcohol to aldehyde
28
Larger nucleophile
Stronger conjugate acid and stronger nuclephile
29
How reactive carboxylic derisive are toward nucleophiles
Anhydride > carboxylic acid and esters > amide Derivatives of high can form lower by no vice versa