Reaction Summary

Reagents

  • Sodium tetrahydridoborate,

Conditions

  • Aqueous/alcoholic solution, room temperature

Catalyst

  • None

Chemical Equation

Equation

By-Products

  • None

Observations

Observations

  • No visible change (colourless liquid/solution throughout)

⚠️ 9701 Exam Notes / Pitfalls

Warning

  • is selective: reduces polar C=O, leaves non-polar C=C intact.
  • Product may show both optical (new chiral C) and cis/trans isomerism.