Aromatics Flashcards

1
Q

Sigma bonds

A

sp^2 Hybridized orbitals

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2
Q

How many pz orbitals?

A

6

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3
Q

what sort of pi system

A

delocalised pi system

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4
Q

reagents in Friedel-Crafts acylation

A

acylchloride or acid anhydride and AlCl3

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5
Q

conditions of Friedel-Crafts acylation

A

Anhydrous

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6
Q

what is H atom on benzene ring replaced by in Friedel-Crafts acylation

A

RCO (Acyl) group

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7
Q

side product when doing Friedel-Crafts acylation with an acyl chloride

A

HCl

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8
Q

Side product when doing Friedel-Crafts acylation with an acid anhydride

A

Carboxylic acid

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9
Q

The three reactions in Friedel-Crafts acylation

A

Generation of electrophile, Reaction of electrophile with benzene, Regeneration of catalyst

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10
Q

Formula of benzene

A

C6H6

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11
Q

Evidence for benzene structure

A

C-C bond length (in between double and single), Addition reaction (doesn’t readily undergo addition, Enthalpy of hydrogenation (less than three double bonds)

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12
Q

name for extra stabilisation due to delocalisation of electrons

A

delocalisation stability

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13
Q

other name for methylbenzene

A

toluene

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14
Q

other name for benzene carboxylic acid

A

benzanoic acid

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15
Q

other name for methyl benzenecarboxylate

A

methyl benzanoate

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16
Q

reagents in nitration

A

concentrated sulphuric acid and concentrated nitric acid and benzene ring

17
Q

what replaces the hydrogen on the benzene ring in nitration

A

nitro group (NO2)

18
Q

products in nitration

A

aromatic nitro compounds

19
Q

conditions for nitration

A

50 degrees Celsius

20
Q

what is the electrophile in nitration?

A

NO2 (nitro group)