Reaction Summary

Reagents

  • Hydrogen cyanide,

Conditions

  • Room temperature

Catalyst

  • Trace / (source of nucleophile)

Chemical Equation

Equation

By-Products

  • None

Observations

Observations

  • No visible change (colourless liquid/solution throughout)

⚠️ 9701 Exam Notes / Pitfalls

Warning

  • The product is really a dihydroxynitrile — a new OH forms from the C=O.
  • Adds one carbon; new chiral centre ➔ racemic at that carbon.
  • Must state trace /.