Aromatic Organic Flashcards

1
Q

Why phenol is more reactive than benzene

A
  1. lone pair on oxygen is delocalised into pi ring system
  2. electron density of pi ring system increased
  3. more susceptible to attack from electrophiles
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2
Q

Why phenylamine is a weak base

A
  1. Lone pair on NH3 delocalised into pi ring system
  2. electron density of pi ring system increased
  3. electrons aren’t available to attack other molecules
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3
Q

Reformation of AlCl3

A

AlCl4 + H+ > AlCl3 + HCl

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4
Q

Formation of acyl chloride electrophile

A

AlCl3 + ROCl > RCO+ + AlCl4-

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5
Q

Sodium phenoxide > phenol

A

HCl

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6
Q

Phenol + bromine equation

A

C6H5OH + 3Br2 > C6H3Br3 (2,4,6) + 3HBr

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7
Q

Chlorobenzene > sodium phenoxide

A

NaOH, 350C

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8
Q

Formation of nitronium ion

A
  1. H2SO4 + HNO3 > HSO4- + H2NO3+
  2. H2NO3+ > H2O + NO2+
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9
Q

Nitrobenzene > Phenylamine

A

Sn, conc HCl, reflux

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10
Q

Benzene > Nitrobenzene

A

conc HNO3, conc H2SO4, heat

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11
Q

Formation of chlorine electrophile

A

Cl2 + AlCl3 > AlCl4- + Cl+

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12
Q

Benzene > Chlorobenzene

A

Cl2, AlCl3 catalyst (E.S. / Chlorination)

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13
Q

Benzene > Cyclohexane

A

H2, Ni catalyst (Reduction)

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14
Q

Formation of bromine electrophile

A

Br2 + FeBr3 > Br+ + FeBr4-

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15
Q

Benzene > Bromobenzene

A

Br2, FeBr3 X carrier (E.S. / bromination)

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