In this experiment, I have predicted the product of bromination of vanillin. The knowledge of electron-donating and electron-withdrawing substituents on the benzene ring and the position where they directed the bromine, helped me to accurately predict the major product of the reaction, which is 5-bromovanillin. In this experiment, I have reinforced stirring, vacuum filtration, and recrystallization skills. Also, I have learned how to use Melt-Temp apparatus to take a melting point of the final product.
5-bromovanillin was obtained in 98.3% yield from this reaction. At a room temperature, 5-bromovanillin is a slightly brown powder with vanilla odor. The melting point range for the final product is 166.1 – 167.5 oC, which closely corresponds
5-bromovanillin was obtained in 98.3% yield from this reaction. At a room temperature, 5-bromovanillin is a slightly brown powder with vanilla odor. The melting point range for the final product is 166.1 – 167.5 oC, which closely corresponds