The experiment is bromination of alkene using cinnamic acid and bromine solution

Question

The experiment is bromination of alkene using cinnamic acid and bromine solution. There are three unknown mechanism that may occur: syn addition reaction, anti addition reaction, and syn and anti together. Syn product have a lower temperature than anti product due to its stereochemistry. The actual mechanism occur in this experiment is anti addition reaction. Melting point for syn product is 95 and melting point for anti product is 200. Describe the melting point for the followings if the product is actually a mixture of both syn and anti products? 1. syn is major and anti is minor 2. syn is minor and anti is major 3. 50:50 of syn and anti Which of the following (s) is or are true about crystallization of benzoic acid? a. use small amount of naoh b. use small amount of hot water to dissolve the acid c. use generous amount of water in order to dissolve and wash out impurities

Explanation / Answer

http://www2.chemistry.msu.edu/faculty/reusch/virttxtjml/addene1.htm

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