text: Nitroalkenes are synthesized by various means, notable examples include:
  * Nitroaldol reactions such as the Henry reaction:
  * Nitration of an alkene with nitryl iodide generated in-situ from silver nitrite and elemental iodine:
  * Direct nitration of alkenes with nitric oxide and an aluminum oxide catalyst in acidic conditions:
  *Direct nitration of alkenes with Clayfen (Iron(III) nitrate supported on Montmorillonite clay):
  * Dehydration of nitro-alcohols: