Hydroboration–Oxidation: Anti‑Markovnikov Hydration with Syn Addition

Hydroboration–oxidation adds water to alkenes anti‑Markovnikov with syn stereochemistry. Use the interactive scrubber to master regio/stereo rules, then practice with exam questions.

• Overall transformation: Alkene → alcohol (anti‑Markovnikov hydration)
• Reagents: 1) BH3·THF (or 9‑BBN) 2) H2O2, NaOH
• Regiochemistry: OH ends up on less substituted carbon
• Stereochemistry: Syn addition of H and OH (stereospecific)
• Rearrangements: None
• Exam type: Predict the major product
• Exam type: Regiochemistry
• Exam type: Stereochemistry