Organic chemistry i reactions of alkenes and alkynes introduction to organic synthesis
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Organic Chemistry I Reactions of Alkenes and Alkynes Introduction to Organic Synthesis. Dr. Ralph C. Gatrone Department of Chemistry and Physics Virginia State University. Chapter Objectives. Introduce Organic Synthesis Summarize reactions covered Emphasize the need to know the reactions

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Organic chemistry i reactions of alkenes and alkynes introduction to organic synthesis

Organic Chemistry IReactions of Alkenes and AlkynesIntroduction to Organic Synthesis

Dr. Ralph C. Gatrone

Department of Chemistry and Physics

Virginia State University


Chapter objectives
Chapter Objectives

  • Introduce Organic Synthesis

  • Summarize reactions covered

  • Emphasize the need to know the reactions

  • Emphasize the need to know the reactions

  • I cannot emphasize the need to know the reactions enough.

  • You must realize that you need to know the reactions.


Learning organic reactions
Learning Organic Reactions

  • Flash Cards

  • Consistent study

  • Effort required




In other words
In other words …

  • Learn

  • The

  • Reactions!

  • Study

  • Your

  • Notecards!


Synthesis as
Synthesis as

  • A tool for Learning Organic Chemistry

  • In order to propose a synthesis you must be familiar with reactions

  • What they begin with

  • What they lead to

  • How they are accomplished

  • What the limitations are

  • A synthesis combines a series of proposed steps to go from a defined set of reactants to a specified product

  • Remember your Note Cards for our Reactions


Strategies for synthesis
Strategies for Synthesis

  • Consider the target molecule

  • Consider the allowed starting materials

  • Consider reactions that efficiently give desired outcome


Retrosynthetic analysis
Retrosynthetic Analysis

  • Primary strategy

  • Consider target molecule

  • Consider what reaction will provide that molecule


Example
Example

  • Prepare decane from 1-pentyne

  • You may use any inorganic reagents.

  • Starting material is 1-pentyne

  • You cannot use anything else.



Retrosynthetic analysis2
Retrosynthetic Analysis

Hydrogenation reduces triple bond to alkane








Synthetic strategy
Synthetic Strategy

  • You must know the reactions.


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