Dipeptide Report
- Introduction
- Discuss the purpose for protecting group strategy and activation of carboxyl group in this experiment. Include schemes for all reactions performed.
- Why the starting amino acid exists as a Zwitterion? Explain?
Why does the final product of part I is not a Zwitterion? Explain?
- Results and Discussion
- Reaction II: Coupling of N-acetyl phenylalanine.
- Determine on the purity achieved in each step by analyzing the crude and pure NMR spectra – by interpreting all signals, including integrations and assigning to structures – and compare with the spectra of the pure product.
- Discuss the mechanism by which the peptide was formed by using TBTU
- Reaction II: Coupling of N-acetyl phenylalanine.
- Determine if racemization is present in crude product and discuss how the stereoisomers could have formed by proposing a reasonable mechanism of this racemization.
- Introduction
- Discuss the purpose for protecting group strategy and activation of carboxyl group in this experiment. Include schemes for all reactions performed.
- Why the starting amino acid exists as a Zwitterion? Explain?
Why does the final product of part I is not a Zwitterion? Explain?
- Results and Discussion
- Reaction II: Coupling of N-acetyl phenylalanine.
- Determine on the purity achieved in each step by analyzing the crude and pure NMR spectra – by interpreting all signals, including integrations and assigning to structures – and compare with the spectra of the pure product.
- Discuss the mechanism by which the peptide was formed by using TBTU
- Reaction II: Coupling of N-acetyl phenylalanine.
- Determine if racemization is present in crude product and discuss how the stereoisomers could have formed by proposing a reasonable mechanism of this racemization.