• There are examples of the E2 reaction mechanism in the second step and the final step of this reaction.
• Intramolecular reaction is, of course, vital to the heterocycle formation.
• The same starting material can be used to form furans or thiophenes.
  
  
  References:
• Chandrasekhar S.; Rajaiah G.; Srihari P.; Tetrahedron, 2001, Volume 42, Issue 37, 6599-6601
• Braum R.U.; Zeitler K.; Muller T.J.J.; Organic Letters, 2001, Volume 3, Issue 21, 3297-3300