What is the product of the Grignard reaction of phenylmagnesium bromide and acetophenone then H+?
What is the product of the Grignard reaction of phenylmagnesium bromide and acetophenone then H+?
The following GCMS spectrum was of the product of a Grignard reaction between phenylmagnesium bromide and acetophenone in anhydrous conditions. The major peak in the chromatogram was 1,1-diphenylethanol. I was able to identify that peak and its fragmentation. However, I cannot figure out the identity of the second peak in the chromatogram (around 9 minutes). I have attached this mass spec in the post below, and I appreciate any help in determining its identity and fragmentation. le Name: CM 227...
1. which structure better relfexts the ionic character of the grignard reagent, phenylmagnesium bromide or phenylmagnesium bromide dietherate complex? 2. which of the two structures mentioned avove appears to have the most nucleophilic ipso carbon? what does this tell you about the role of the etherate complex?
Benzene is often produced as a side product during Grignard reactions using phenylmagnesium bromide. How can its formation be explained? Give a balanced equation for its formation.
Triphenylmethanol can also be formed by the reaction of phenylmagnesium bromide with either benzophenone or diethyl carbonate. Give the mechanisms for both reactions and tell how many equivalents of the Grignard reagent would be needed.
In Grignard reaction: 1) The main by-product of the reaction to prepare triphenylmethanol is biphenyl. Draw the structure of biphenyl and write a reaction to explain its formation. 2) Another typical by-product of any reaction using phenylmagnesium bromide is benzene. Write a reaction to explain its formation.
Grignard reaction What would be the reaction of a prepared Grignard reaction with tolylmagnesium bromide, from 2-bromotoluene and magnesium metal using tetrahydrofuran (THF) as the solvent?
Draw the product obtained if the dry Et2O used in the formation of the phenylmagnesium bromide would have been contaminated with acetone. Draw the product obtained if the dry Et2O used in the formation of the phenylmagnesium bromide would have been contaminated with acetone.
In a titration experiment with your product, it took 1.1 mL of phenylmagnesium bromide to turn the indicator from yellow to orange. What is the concentration of the phenylmagnesium bromide solution if you started with 68.5 mg of indicator? Report you answer to 3 decimal places.
Please show work! o Name/Structure Bromobenzene Magnesium Phenylmagnesium bromide (Grignard reagent) 157.01 24.305 181.31 Formula Mass (8) MW (g/mole) Moles Equivalents Volume (ml) Density (g/ml) 1.0 1.0
In a titration experiment with your product, it took 1.88 mL of phenylmagnesium bromide to turn the indicator from yellow to orange. What is the concentration of the phenylmagnesium bromide solution if you started with 72.7 mg of indicator? Report your answer to 3 decimal places. Ansers: .182 mol/L also tried 30.033 mg/ml Please help