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Understanding Ortho-Para Chemistry: Effects of Substituents and Synthesis Tools

Explore the concepts of antagonistic effects, cooperative effects, and synthesis tools in ortho-para chemistry. Learn about electron-donating and electron-withdrawing groups, diazonium chemistry, and mechanisms for forming diazonium salts from anilines. Discover insights into reducing reactivity with acetyl groups in the synthesis process.

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Understanding Ortho-Para Chemistry: Effects of Substituents and Synthesis Tools

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  1. Chapter 18 Discussion

  2. With multiple substitutents there can be antagonistic or reinforcing effects Antagonistic or Non-Cooperative Reinforcing or Cooperative D = Electron Donating Group (ortho/para-directing) W = Electron Withdrawing Group (meta-directing)

  3. Important tools for synthesis

  4. ortho-para director

  5. Diazonium chemistry

  6. Mechanism for formation of Diazonium Salts from Anilines

  7. Reduce reactivity with acetyl groups

  8. Weak step here

  9. A B C D

  10. A

  11. B

  12. D

  13. From benzene

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