Medium Practice — Set 1

Quick Recap — Reactions & Preparations

• Preparations: from alcohols ($HX$, $PCl_5$, $SOCl_2$), free-radical halogenation, halogen addition to alkenes.
• Named reactions: Wurtz ($2RX+2Na$), Wurtz-Fittig (alkyl + aryl halide), Fittig (2 aryl halides), Finkelstein ($RCl+NaI\to RI$), Swarts (fluorination).
• Grignard $RMgX$ + carbonyl $\to$ alcohol; + $CO_2\to$ acid.
• Haloarene reactivity is low; substitution needs harsh conditions (e.g. Dow process for phenol).