CHM 1321 Lecture Notes - Lecture 5: Phenylmagnesium Bromide, Grignard Reaction, Bromobenzene

• School: University of Ottawa
• Department: Chemistry
• Course: CHM 1321
• Professor: Greg Flynn

Document Summary

Preparation of benzoic acid using a grignard reagent. Table 1: reagents used in the reaction to form benzoic acid and their properties. Refer to experiment 5: preparation of benzoic acid using a grignard reagent, in the. Organic chemistry 1 laboratory manual for chm1321 course in the winter session of. Table 2: the final results from the isolation of benzoic acid such as weight, At the end of this experiment, 0. 89 grams of benzoic acid was recovered. This amount is extremely low as the expected mass was around 3. 48 grams. With this result, the percent yield was only 25. 57%. The melting point that was achieved was 120. 9 c. 122 c. this is almost exactly the same as the literature melting point which is. In this reaction, a grignard was used to prepare benzoic acid. A grignard compound has an organic component and a metal. They are helpful in reactions because they are capable of forming bonds between carbon atoms.