CHEM 2211 1st Edition Lecture 23 Outline of Last Lecture I II Revision and Expansion of Acid Catalyzed Water Addition Hydroboration of Alkynes Outline of Current Lecture I II III IV V Know your mechanisms Intro to Retrosynthesis Example 1 Example 2 Practice Problem Current Lecture I II KNOW YOUR MECHANISMS Introduction to Retrosynthesis A Retrosynthesis is just a synthesis reaction backwards B Useful skill for when you have a product but need to create a reactant via the least amount of steps possible Example 1 Retrosynthesis of 3 hexyne Synthesis reaction of ethyne into 3 hexyne Example 2 Retrosynthesis of 3 4 dibromohexane Synthesis of 3 4 dibromohexane from ethyne Practice Problem Synthesize this three carbon aldehyde from 1 butyne Answer Synthesis
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