Synthesis Flashcards

1
Q

alkane —> chloroalkane

A

reagents: chlorine
conditions: UV light
mechanism: free radical sub
equation: CH4 + Cl2 ⇒ CH3Cl + HCl (example)

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2
Q

chloroalkane —> alcohol

A

reagents: aqueous NaOH
conditions: warm
mechanism: Nucleophilic sub
equation: R-Cl + NaOH ⇒ R-OH + NaCl

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3
Q

Chloroalkane —> alkene

A

reagents: ethanolic KOH
conditions: warm
mechanism: elimination
equation: CH3CH2Cl + KOH ⇒ CH2=CH2 + KCl + H2O (example)

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4
Q

chloroalkane —> nitrile

A

reagents: aqueous and alcoholic KCN
conditions: heat under reflux
mechanism: Nucleophilic sub
equation: R-Cl + KCN ⇒ R-CN + KCl

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5
Q

primary amine —> secondary amine —> tertiary amine —> quaternary salt

A

reagents: chloroalkane
conditions: warm
mechanism: nucleophilic substitution
equation: R1-NH2 + R2-Cl ⇒ R1R2NH + HCl

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6
Q

alkene —> alkane

A

reagents: hydrogen, Ni catalyst
conditions: 150 oC, high pressure
mechanism: electrophilic addition
equation: CH2=CH2 + H2 ⇒ CH3CH3 (example)

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7
Q

alkene —> dibromoalkane

A

reagents: bromine
conditions: room temperature
mechanism: electrophilic addition
equation: CH2=CH2 + Br2 ⇒ CH2BrCH2Br (example)

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8
Q

alkene —> bromoalkane

A

reagents: hydrogen bromide
conditions: room temperature
mechanism: electrophilic additon
equation: CH2=CH2 + HBr ⇒ CH3CH2Br (example)

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9
Q

alkene —> alkylhydrogensulphate

A

reagents: concentrated sulphuric acid
conditions: cold
mechanism: electrophilic addition
equation: CH2=CH2 + H2SO4 ⇒ CH3CH2OSO3H (example)

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10
Q

alkylhydrogensulphate —> alcohol

A

reagents: water
conditions: warm
mechanism: nucleophilic sub
equation: CH3CH2OSO3H + H2O ⇒ CH3CH2OH + H2SO4 (example)

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11
Q

alkene —> alcohol

A

reagents: steam
conditions: 300 oC, 60 atm, phosphoric acid catalyst
equation: CH2=CH2 +H2O ⇒ CH3CH2OH

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12
Q

nitrile —> primary amine

A

reagents: LiAlH4
conditions: dry ether
equation: R-CN + 4[H] ⇒ R-CH2NH2 (example)

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13
Q

alcohol —> alkene

A

reagents: Al2O3
conditions: high temperature
equation: CH3CH2OH ⇒ CH2=CH2 + H2O (example)

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14
Q

primary alcohol —> aldehyde

A

reagents: K2Cr2O7 and dilute H2SO4
conditions: heat under reflux, distill to prevent carb formation

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15
Q

secondary alcohol —> ketone

A

reagents: K2Cr2O7 and dilute H2SO4
conditions: heat under reflux
equation: R1R2CHOH + [O] ⇒ R1-COR2 + H2O

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16
Q

primary alcohol —> carboxylic acid

A

reagents: K2Cr2O7 and dilute H2SO4
conditions: heat, reflux
equation: R-CH2OH + 2[O] ⇒ R-COOH + H2O

17
Q

carbonyl —> alcohol

A

reagents: aqueous NaBH4(aq)
conditions: room temperature
equation: R1-COR2 + 2[H] ⇒ R1R2CHOH

18
Q

carboxylic acid —> carboxylate salt

A

reagents: NaOH
conditions: room temperature
equation: R-COOH + NaOH ⇒ R-COONa + OH

19
Q

amine —> alkylammonium salt

A

reagents: haloalkane
conditions: room temperature

20
Q

carbonyl —> hydroxynitrile

A

reagents: KCN
conditions: small H2SO4 and room temperature
equation: R1COR2 + KCN ⇒ R1R2COHCN

NB This reaction adds an extra carbon atom and introduces an extra functional group onto the molecule

21
Q

acyl chloride —> carboxylic acid

A

reagents: water
conditions: room temperature
equation: R-COCl + H2O ⇒ R-COOH

22
Q

acyl chloride —> amide

A

reagents: aqueous ammonia
conditions: excess
equation: R-COCl + 2NH3 ⇒ R-CONH2 +NH4Cl

23
Q

acid anhydride —> carboxylic acid

A

reagents: water
conditions: warm
equation: (RCO)2O + H2O ⇒ 2R-COOH

24
Q

acid anhydride —> amide

A

reagents: ammonia
conditions: warm
equation: (RCO)2O + NH3 ⇒ R-CONH2 + RCOOH

25
Q

carboxylic acid + alcohol —> ester (esterification)

A

reagents: concentrated sulphuric acid
conditions: heat under reflux
equation: R1COOH + R2OH ⇒ R1COOR2 + H2O

26
Q

acyl chloride + alcohol —> ester

A

conditions: room temperature
equation: R1COCl + R2OH ⇒ R1COOR2 + HCl

27
Q

acid anhydride + alcohol —> ester

A

conditions: warm
equation: (R1CO)2O + R2OH ⇒ R1COOR2 + R1COOH

28
Q

ester —> carboxylic acid + alcohol

A

reagents: dilute sulphuric acid
conditions: heat under reflux
equation: R1COOR2 + H2O ⇒ R1COOH + R2OH

29
Q

ester —> carboxylate salt + alcohol

A

reagents: NaOH(aq)
conditions: heat under reflux
equation: R1COOR2 + NaOH ⇒ R1COONa + R2OH

30
Q

acyl chloride + primary amine —> N-substituted amide

A

conditions: room temperature
equation: R1-COCl + 2R2-NH2 ⇒ R1-CONHR2 + R2-NH3Cl

31
Q

acid anhydride + primary amine —> N-substituted amide

A

conditions: warm
equation: (R1CO)2O+ R2-NH2 ⇒ R1-CONHR2 + R1-COOH

32
Q

benzene —> nitrobenzene

A

eagents: concsulphuric and nitric acids
conditions: below 55•c and reflux
equation: C6H6 + HNO3 ⇒ C6H5NO2 + H2O

33
Q

benzene —> alkylbenzene

A

reagents: chloroalkane, AlCl3
conditions: 50•c and reflux
equation: C6H6 + RCl ⇒ C6H5R + HCl

34
Q

benzene —> phenylketone

A

reagents: acyl chloride, AlCl3
conditions: room temperature and non-dry environment
equation: C6H6 + RCOCl ⇒ C6H5COR + HCl

35
Q

nitrobenzene —> phenylamine

A

reagents: tin, concentrated HCl
conditions: reflux
equation: C6H6 + 6[H] ⇒ C6H5NH2 + 2H2O

36
Q

Phenylamine —> N-phenylethanamide

A

reagents: ethanol chloride
conditions: reflux (Addition-elimination)

37
Q

chloroalkane —> 1 amine

A

reagents: ethanolic NH3
conditions: Excess
mechanism: nuc sub
equation: CH3Cl + 2NH3 ⇒ CH3NH2 + NH4+