Data Analysis Questions for Multistep Dipeptide

Day 1: Synthesis N-tert-Butoxycarbonyl L-Alanine

A. Percent Yield

a. What is the percent yield?

b. Why did you get these results (ie why did you lose product)?

c. Is there something you could have done to improve your yield?

i. If so, why?

ii. If not, why?

B. Melting Point

a. What is the melting point?

b. What does the melting point data tell you?

c. Were there any errors?

i. What are the errors?

ii. What caused them?

iii. What effect did the errors have on your melting point?

C. IR

a. IR functional group region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the functional group region?

b. IR fingerprint region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the fingerprint region?

c. IR final analysis

i. Does the IR support the synthesis of N-tert-Butoxycarbonyl L-Alanine?

ii. Why or why not?

Day 2: Synthesis of Methyl L-Phenylalaninate Hydrochloride

A. Percent Yield

a. What is the percent yield?

b. Why did you get these results (ie why did you lose product)?

c. Is there something you could have done to improve your yield?

i. If so, why?

ii. If not, why?

B. Melting Point

a. What is the melting point?

b. What does the melting point data tell you?

c. Were there any errors?

i. What are the errors?

ii. What caused them?

iii. What effect did the errors have on your melting point?

C. IR

a. IR functional group region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the functional group region?

b. IR fingerprint region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the fingerprint region?

c. IR final analysis

i. Does the IR support the synthesis of Methyl L-Phenylalaninate Hydrochloride?

ii. Why or why not?

Day 3: Synthesis of Methyl N-tert-Butoxycarbonyl L-Alanyl-L-Phenylalaninate

A. Percent Yield

a. What is the percent yield?

b. Why did you get these results (ie why did you lose product)?

c. Is there something you could have done to improve your yield?

i. If so, why?

ii. If not, why?

B. Melting Point

a. What is the melting point?

b. What does the melting point data tell you?

c. Were there any errors?

i. What are the errors?

ii. What caused them?

iii. What effect did the errors have on your melting point?

C. IR

a. IR functional group region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the functional group region?

b. IR fingerprint region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the fingerprint region?

c. IR final analysis

i. Does the IR support the synthesis of Methyl N-tert-Butoxycarbonyl L-Alanyl-L-Phenylalaninate?

ii. Why or why not?

Day 4: Synthesis of Methyl L-Alanyl-L-Phenylalaninate Trifluoroacetate

A. Percent Yield

a. What is the percent yield?

b. Why did you get these results (ie why did you lose product)?

c. Is there something you could have done to improve your yield?

i. If so, why?

ii. If not, why?

B. Melting Point

a. What is the melting point?

b. What does the melting point data tell you?

c. Were there any errors?

i. What are the errors?

ii. What caused them?

iii. What effect did the errors have on your melting point?

C. IR

a. IR functional group region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the functional group region?

b. IR fingerprint region analysis

i. What peaks are present that should be present?

ii. What peaks are absent that should be absent?

iii. Are there any peaks present or absent that should not be?

iv. What conclusion can you draw about the fingerprint region?

c. IR final analysis

i. Does the IR support the synthesis of Methyl L-Alanyl-L-Phenylalaninate Trifluoroacetate?

ii. Why or why not?