Question

I dont know why the sulfuric acid is added after the reducing agent has already reacted with the 9-fluorenone

NAME Chemistry 3232 Organic Chemistry Reduction of 9-Fluorenone (50 points) Pre-lab Exercises Industrially, what is the method of choice for the reduction of ketones? Catalythe hydrogena thion of carbonal compou 2. Compound Molecular mp or bp g used mol used 9-fluorenone lg0.2 tal 83.5°eoto NaBH3783ol 40°C 005 Haso, 18.2mb methanol 2.0 4 ghnol -97lere 10 mL H2SO4 In the experiment, the reducing agent is allowed to react with 9-fluorenone, and after the reaction is complete, sulfuric acid is added. What is the purpose of this addition? 3. Background Carbonyl compounds are commonly reduced to alcohols by catalytic hydrogenation or with metal hydrides. When applied to aldehydes, reduction, which is generally indicated y the symbol (H], provides a convenient route to primary alcohols, whereas the uction of ketones gives secondary alcohols. Although catalytic hydrogenation of carbonyl compounds is frequently the method of choice in industrial processes, lithium aluminum hydride, sodium borohydride, and their derivatives are generally used in the research laboratory. Sodium borohydride can be used in alcoholic and even aqueous solutions, because it reacts more rapidly with the carbonyl group than with the solvent On the other hand, lithium aluminum hydride reacts rapidly with protic solvents, and it must be used in anhydrous ethereal solvents such as diethyl ether or tetrahydrofuran