3:49 PM outlook.office.com AT&T; The use of Grignard reagents to produce compoun

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3:49 PM outlook.office.com AT&T; The use of Grignard reagents to produce compounds such as triphenylmethanol has been found to be not only a useful method of synthesizing an extended variety of functional groups but also to be a versatile t Interestingly, in modern industry, the application of Grignard reactions of large scale has decreased over time because of the cost inefficiency. Additionally, the potential dangers of using an extensive amount of diethyl ether, a solvent used in this experiment, also affected the decline of industrial applications of Grignard reactions. Yet, in order to explore the method in which phenylmagnesi to produce triphenylmethanol, the Grignard reaction was utilized during this experiment. The synthesis of a Grignard reagent was required for the Grignard reaction of this experiment to occur, therefore, phenylmagnesium bromide was produced before further proceeding with the preparation of triphenylmethanol. Grignard reagents, such as phenylmagnesium bromide, are Lewis bases and are good nucleophiles; they are also good leaving groups. Due to the increase of the size of a molecule upon descending down the periodic table, it was evident that phenylmagnesium bromide was a good leaving. Additionally, the continuation of the Grignard reaction in producing the final product was due to the fact that ketones are more reactive with nucleophiles than esters. Consequently, the ketone, to utilize the Grignard reagent to further the Grignard reaction to completion, thus producing triphenylmethanol, the final product As shown by the mechanisms below which represent the chemical reactions that occurred during the experiment, the preparation of the Grignard reagent was the initial step of a Grignard reaction. Also, as seen in 'Scheme 2" below, the Grignard reagent was used to produce the final product, triphenylmethanol Upon synthesizing the final product, the melting point of the product was observed and recorded, allowing the purity of the product to be evaluated. Additionally, an IR spectrum of the product was obtained and analyzed for specific peaks, thus allowing the further assessment of the ium bromide and methyl benzoate can react benzophenone, was able

Explanation / Answer

4.

3473.99 cm-1: Due to the O-H stretch.

3060.58 cm-1: Due to Aromatic C-H stretch.

1959.21 cm-1: Represents a C-C stretch (in ring)

1596.90 cm-1: Due to the Aromatic C-C stretch (in ring).

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