What is the limiting reagent in the synthesis of triphenylmethanol?

What is the limiting reagent in the synthesis of triphenylmethanol?

Determine the quantities of bromobenzene, magnesium metal, and methyl benzoate needed to prepare a theoretical yield of 9.65g of triphenylmethanol. Methyl benzoate should be your limiting reagent; use 10% more than the stoichiometric quantity of Mg and 15% more than the stoichiometric quantity of bromobenzene.

How do you synthesize triphenylmethanol?

Using this Grignard reagent, triphenylmethanol can be synthesized in a two-step reaction first adding the reagent and then adding an acid. The Grignard reagent attack the electrophilic carbonyl carbon of the benzophenone and pushed electrons up to the oxygen.

What is the limiting reagent in the formation of a Grignard reagent?

Since benzophenone has the fewest moles, it is the limiting reactant.

What is the limiting reagent in this reaction methanol or triphenylmethanol explain how you know?

so no, you don’t → methyl benzoate will be the limiting reagent. This means that methyl benzoate will be completely consumed before all the moles of bromobenzene and magnesium will get the chance to react.

How do you find the limiting reactant?

One way of finding the limiting reagent is by calculating the amount of product that can be formed by each reactant; the one that produces less product is the limiting reagent.

Why is the Bromobenzene added in portions over a 15 minute period?

It needed to be added very slowly to avoid it reacting with phenylmagnesium bromide to form impurities.

How do you separate biphenyl and triphenylmethanol?

In order to remove the biphenyl, add 0.5 mL of petroleum ether to the residue, cool in an ice bath briefly while stirring and remove the solvent (process is called trituration). The remaining residue (the crude triphenylmethanol) should then be recrystallized from 2-propanol.

Is triphenylmethanol soluble in water?


Boiling Point 360°C to 380°C
Solubility Information Soluble in dioxane,ethanol,water,ether and benzene.
Formula Weight 260.34
Percent Purity 98%
Chemical Name or Material Triphenylmethanol