On the other hand, a nucleophilic substitution reaction can also occur in a stepwise matter, known as an SN1 mechanism. First, a loss of the leaving group would occur, forming a carbocation intermediate, which is then attacked by the nucleophile. Given that this reaction forms the carbocation intermediate, steric hindrance is not a factor so this mechanism is preferable on a tertiary substrate. However, the rate of this reaction is dependent on the rate at which the …show more content…
RX + NaI RI + NaX (X= Cl or Br)
2. RX + AgNO3 + EtOH ROEt + AgX + HNO3
General alcohol equation:
ROH + HCl RCL + H2O
Example Mechanisms
2-bromobutane in NaI/acetone:
2-bromobutane in AgNO3/ethanol:
2-methyl-2-propanol in HCl-ZnCl2