### Organic Chemistry Exercise: Mechanisms and Yield Calculation#### a. Electron Pushing Mechanism for Conversion- **Task**: Propose an electron pushing mechanism for the conversion of o-phenylenediamine plus formic acid to the first amide intermediate, catalyzed by acid.- **Instructions**: Indicate all resonance-stabilized carbocations with the letters "RSCC".#### b. Cyclization to Benzimidazole- **Task**: Propose an electron pushing mechanism for the cyclization of the amide intermediate to benzimidazole.- **Instructions**: Indicate all resonance-stabilized carbocations with the letters "RSCC".#### c. Calculate Mmol and Yield- **Task**: Determine the mmol of both starting materials. Consider that formic acid is not pure but is 88% weight/volume, or 88g/100ml. Show your work.- **Instructions**: Determine the limiting reagent in this synthesis. Lastly, calculate the theoretical yield of benzimidazole that you could expect to form.

Since you have asked multiple question, we will solve the first question for you. If you want any…

a. Propose an electron pushing mechanism for the conversion of o-phenylene diamine plus formic acid to the first amide intermediate (catalyzed by acid). Indicate all resonance stabilized carbocations with the letters "RSCC"

a. Propose an electron pushing mechanism for the conversion of o-phenylene diamine plus formic acid to the first amide intermediate (catalyzed by acid). Indicate all resonance stabilized carbocations with the letters "RSCC"

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

### Organic Chemistry Exercise: Mechanisms and Yield Calculation

#### a. Electron Pushing Mechanism for Conversion

- **Task**: Propose an electron pushing mechanism for the conversion of o-phenylenediamine plus formic acid to the first amide intermediate, catalyzed by acid.
- **Instructions**: Indicate all resonance-stabilized carbocations with the letters "RSCC".

#### b. Cyclization to Benzimidazole

- **Task**: Propose an electron pushing mechanism for the cyclization of the amide intermediate to benzimidazole.
- **Instructions**: Indicate all resonance-stabilized carbocations with the letters "RSCC".

#### c. Calculate Mmol and Yield

- **Task**: Determine the mmol of both starting materials. Consider that formic acid is not pure but is 88% weight/volume, or 88g/100ml. Show your work.
- **Instructions**: Determine the limiting reagent in this synthesis. Lastly, calculate the theoretical yield of benzimidazole that you could expect to form.

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