Synthesis Flashcards
alkane —> chloroalkane
reagents: chlorine
conditions: UV light
mechanism: free radical sub
equation: CH4 + Cl2 ⇒ CH3Cl + HCl (example)
chloroalkane —> alcohol
reagents: aqueous NaOH
conditions: warm
mechanism: Nucleophilic sub
equation: R-Cl + NaOH ⇒ R-OH + NaCl
Chloroalkane —> alkene
reagents: ethanolic KOH
conditions: warm
mechanism: elimination
equation: CH3CH2Cl + KOH ⇒ CH2=CH2 + KCl + H2O (example)
chloroalkane —> nitrile
reagents: aqueous and alcoholic KCN
conditions: heat under reflux
mechanism: Nucleophilic sub
equation: R-Cl + KCN ⇒ R-CN + KCl
primary amine —> secondary amine —> tertiary amine —> quaternary salt
reagents: chloroalkane
conditions: warm
mechanism: nucleophilic substitution
equation: R1-NH2 + R2-Cl ⇒ R1R2NH + HCl
alkene —> alkane
reagents: hydrogen, Ni catalyst
conditions: 150 oC, high pressure
mechanism: electrophilic addition
equation: CH2=CH2 + H2 ⇒ CH3CH3 (example)
alkene —> dibromoalkane
reagents: bromine
conditions: room temperature
mechanism: electrophilic addition
equation: CH2=CH2 + Br2 ⇒ CH2BrCH2Br (example)
alkene —> bromoalkane
reagents: hydrogen bromide
conditions: room temperature
mechanism: electrophilic additon
equation: CH2=CH2 + HBr ⇒ CH3CH2Br (example)
alkene —> alkylhydrogensulphate
reagents: concentrated sulphuric acid
conditions: cold
mechanism: electrophilic addition
equation: CH2=CH2 + H2SO4 ⇒ CH3CH2OSO3H (example)
alkylhydrogensulphate —> alcohol
reagents: water
conditions: warm
mechanism: nucleophilic sub
equation: CH3CH2OSO3H + H2O ⇒ CH3CH2OH + H2SO4 (example)
alkene —> alcohol
reagents: steam
conditions: 300 oC, 60 atm, phosphoric acid catalyst
equation: CH2=CH2 +H2O ⇒ CH3CH2OH
nitrile —> primary amine
reagents: LiAlH4
conditions: dry ether
equation: R-CN + 4[H] ⇒ R-CH2NH2 (example)
alcohol —> alkene
reagents: Al2O3
conditions: high temperature
equation: CH3CH2OH ⇒ CH2=CH2 + H2O (example)
primary alcohol —> aldehyde
reagents: K2Cr2O7 and dilute H2SO4
conditions: heat under reflux, distill to prevent carb formation
secondary alcohol —> ketone
reagents: K2Cr2O7 and dilute H2SO4
conditions: heat under reflux
equation: R1R2CHOH + [O] ⇒ R1-COR2 + H2O