Organic Chemistry Flashcards Preview

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Flashcards in Organic Chemistry Deck (40):
1

What is Huckel's Rule for aromaticity?

To be aromatic, the molecule must be a planar monocyclic ring with 4n + 2pi electrons.

2

What makes a stable resonance structure?

Decreased formal charges on atoms and decreased separation of charges.

3

What is an amine? 

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4

What is an amide?

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5

What is a gem-dihalide?

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6

What is a vic-dihalide?

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7

What is an alkoxy?

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8

What is a Ms-mesyl group?

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9

What is a Ts-tosyl group?

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10

What is a carbonyl?

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11

What is a acetyl?

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12

What is an acyl?

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13

What is an anahydride? 

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14

What is an aryl group? 

Phenyl as a substituent

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15

What is a benzyl?

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16

What is a hydrazine? 

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17

What is a hydrazone? 

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18

What is a vinyl alkene?

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19

What is a vinyllic alkene?

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20

What is a allyl group?

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21

What is a nitrile group?

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22

What is an epoxide?

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23

What is a tautomer?

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24

What is an enamine?

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25

What is an imine?

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26

What is an oxime?

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27

What is a nitro group?

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28

What is a nitroso group?

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29

What is an ether?

R---O---R'

30

What is an ester?

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31

What is ammonium?

protonated amine

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32

What is amonia?

Simplest amine

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33

What is an anomer?

Stereoisomer that differes at the anomeric carbon of a carbohydrates in CYCLIC FORM (ex: α-D; β-D)

34

What is an epimer?

A stereoisomer that differs at ONLY ONE stereogenic C (ex: glucose and galactose)

35

Exception to ionization energy trend with O and N

The ionization energy of N>O because O has electron repulsion from the oxygen's additional electron in the already half-fills 2p-orbital 

36

Good leaving groups

weak bases in solution

37

What is a good nucleophile?

strong base

(N is better nucleophile and worse LG than O) 

38

What is an electrophilic addition?

A pi (double/triple) bond is broken and a two sigma (single) bonds are formed. 

 

 

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39

What is a nucleophilic substition? 

A nucleophile or an atom with free electrons attacks and electrophilic carbon and relaces the leaving group. 

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