reagents

• acidified potassium manganate (VII)


  alkene to diol
• aqueous bromine


  alkene to bromoalcohol
• concentrated phosphoric (V) acid


  alcohol to alkene
• phosphorous (V) chloride (PCl5)


  alcohol to chloroalkane
• aqueous potassium hydroxide (KOH) under reflux


  halogenoalkane to alcohol
• potassium cyanide (KCN) in ethanol under reflux


  halogenoalkane to nitrile
• ammonia solution (NH3) under pressure


  halogenoalkane to primary amine
• warm ethanolic potassium hydroxide (KOH) 


  halogenoalkane to alkene (elimination)
• concentrated HCl


  tertiary alcohol to chloroalkane
• potassium bromide (KBr) and H2SO4


  alcohol to bromoalkane
• red phosphorous and iodine


  alcohol to iodoalkane
• warm concentrated phosphoric acid


  alcohol to alkene (dehydration + makes E-Z isomers)
• potassium dichromate (VI)


  secondary alcohol to ketone
• potassium dichromate (VI)


  primary alcohol to aldehyde (distillation with addition)
• potassium dichromate (VI)


  primary alcohol to carboxylic acid (heated under reflux)