(Answered) Experiment preparation of benzoic acidintroduction-this

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Experiment: preparation of benzoic acid

Introduction:-this experiment is designed both as a preparative and an investigative project. Two outcomes are expected: preparation of benzoic acid from bromobenzene and analysis of the by-products of a grignard reaction, an integral part of the synthetic procedure.

Part 1: synthetic procedure

A. Grignard reagents as nucleophiles: benzoic acid

B. Grignard reagents as strong bases

C. Isolation and purification of benzoic acid

Experimental procedure:

Preparation of phenyl magnesium bromide

Carbonation of phenyl magnesium bromide; hydrolysis of reaction mixture

Isolation of benzoic acid

Part ii: optional gc/ms analysis of by-products in the organic layer

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