Product was successfully synthesized and each different carbon displayed a peak. The appearance of 5 different 13 C NMR peaks would indicate the Which, like the TLC plate, would indicate the success of product synthesis. The 1 H NMR should indicate the presence of an -OH group An IR spectrum of the pure product should indicate the presence ofĪn alcohol and aromatic groups. An IR spectrum comparing the starting material should indicate the presence of a Increase in polarity which would indicate the synthesis of a tertiary alcohol from a ketone wasĬompleted. The pure product is expected to range from 161-163oC. Will be characterized with melting point, TLC, IR, 1 H NMR and 13 C NMR. Includes the addition of a phenyl group, sourced from the Grignard reagent. The oxygen will be protonated by the hydrogen from the HCl. In this reaction, a ketone, benzophenone, will be converted to a tertiary alcohol, Once the Grignard reagent is formed, triphenylmethanol will be synthesized.Ī Grignard reaction involves conversion of an aldehyde or ketone to a secondary or tertiaryĪlcohol. Reaction must be anhydrous because the presence of water could protonate the reagent and thusĭestroy the reagent. Magnesium will be added to bromobenzene in an anhydrous diethyl ether substrate. The goal of this experiment is to first synthesize a Grignard reagent via electrophilic addition. Synthesis of Triphenylmethanol via a Grignard Reaction
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