Please help No 5 1. Draw the bromonium ion formed in your reaction (shown below)
ID: 693180 • Letter: P
Question
Please help No 5
1. Draw the bromonium ion formed in your reaction (shown below). Br O Hw OH OH Br2 ! trans-cinnamic acid 2,3-dibromo-3-phenylpropanoic acid 2. What is the role of acetic acid in this experiment? 3. Why is NMR a better spectroscopic technique than infrared to differentiate between the starting material and the product? 4. What are the advantages and disadvatages of using elemental bromine as opposed to pyridinium tribromide? Question 5. What contaminate could be in your product if it does not appear white at the end of thc isolation?Explanation / Answer
ANSWER TO 5
IF THE PRODUCT IS NOT WHITE THEN THE UNREACTED BROMINE WATER MAY BE LEFT AS CONTAMINATE AT THE END OF THE ISOLATION