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- Pack a teeny tiny crystal of crude & recrystallized product in separate melting point capillaries.
meltemp.mp42. Place both samples in the Mel-Temp
2. Place both samples in the Mel-Temp
MT of Phenacetin melting (ACE not melted) Exp 5.MOVCrude Product: 79-81 °C
Recrystallized Product: 101-106 °C
Acetaminophen: 164-166 °C
Phenacetin: 115-122 °C
Based on melting temperatures, which product do you suspect was formed?
Based on melting temperatures, which product do you suspect was formed?
Is this suspicion conclusive?
Is this suspicion conclusive?
Assign main peaks of interest in the IR spectrum of the product.
Assign main peaks of interest in the IR spectrum of the product.
How helpful is IR in solving the substitution puzzle?
1H NMR of brominated phenacetin product
1H NMR of brominated phenacetin product
Identify and ignore solvent peaks
Discuss the differences & similarities in each spectrum with your group.
Assign each signal to determine the substitution of the brominated product.
Standard spectra below for reference.
See Canvas > Files > NMR Data for your spectrum.
Brominated Phenacetin HNMR.pdf
Can you solve the puzzle?
Can you solve the puzzle?
Hint: it's all about the 1H NMR signals in the aromatic region!
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