L1 /   
11
CH1012
E2 REACTIONS
• This reaction is
  termed an
   E2 elimination.
• Occurs if B- is a
  strong base
   eg OH-
•  Products are
 an alkene & the
eliminated HB & X-
Bimolecular
one step
For R3CX a
competing rxn
accompanies
SN1 substitution.
b-H