On performing a tlc of the reaction product of borohydride reduction on a plate alongside pure benzophenone, a student observed two spots in their product, the stronger corresponding to the benzophenone. What conclusion can be drawn?
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(a) On performing a tlc of the reaction product of borohydride reduction on a plate alongside pure benzophenone, a student observed two spots in their product, the stronger corresponding to the benzophenone. What conclusion can be drawn?
(b) What is the stationary phase on the tlc plate and why is it effective as a stationary phase?
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- I need to write about the mechanism and how it happens in this lab please help me explain what happens and how in order for Reduction of 4-Nitrobenzaldehyde to 4-Nitrobenzyl Alcohol and Thin Layer ChromatographyBelow is the Wolff–Kishner reduction. Describe how the IR spectrum could be used to tell if the reaction had been successful. Provide approximate wave numbers and the corresponding functional groups for the key absorption bands and/or peaks in IR. describe from two aspects: which peak(s)-wavenumber(s) of what functional group(s) should appear/remain in the IR of the products (that is/are different from the reactants); and which peak(s)-wavenumber(s) of what functional group(s) should disappear in the IR of the products (but is/are present in the reactants).Can someone help me figure out which analytical method would be the most effective for this probelm? I don't think B (melting pt) and C (infrared spectroscopy= functional groups) are the most effective.
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- A Grignard reaction of phenylmagnesium bromide with 3-pentanone gives 3-phenylpentan-3-ol as the major product. The crude product contains the 3-phenylpentan-3-ol product, unreacted 3-pentanone, and biphenyl (a side product). A developing solvent is found that separates the mixture into three spots on a silica gel TLC plate. Considering the functional groups present, predict which compounds would have the smallest and largest Rf values. Briefly justify your answer.3 Draw a flow chart to shows the strategy for separation of three compounds: Phenanthrene and 4-Aminoacetophenone and 1,4-Dibromobenzen and dissolve mixture is Diethyl ether. add NaOH (1M) and (6M) to the aqueous layer and ether layer..The NMR spectrum of 3-nitroaniline was taken in deuterated dimethylsulfoxide (DMSO), not CDCl3. Why? a) The residual CHCl3 peak would get in the way of the aromatic peaks in the product.b) 3-Nitroaniline is not soluble in CDCl3.c) DMSO allows visualization of the peaks for the NH2 group.d) 3-Nitrobenzamide is not soluble in CDCl3.
- Please identify compound 1 and compound 2!!! Attached is the H-NMR and IR for both compounds (ignore the IR peaks ~2400). The experimental melting point for the aqueous layer was 260-261 celcius. The experimental melting point for the organic layer was 76.9-78.7 celcius. The following was my procedure: IntroductionThe reaction mixture in this experiment contains 4-bromobenzaldehyde, methanol, and aqueous potassium hydroxide. A reaction occurs that produces two organic compounds, compound 1 and compound 2. Both are solids at room temperature. Your task is to isolate, purify, and identify both compounds. A specific procedure is given for preparing the compounds, but you will need to work out the procedures for most other parts of this experiment.Experimental ProcedureThis procedure should produce enough of each compound to complete the experiment; however, in some cases, it may be necessary to run the reaction a second time. Although this experiment can be done individually, it works…1. Compare the IR spectra of the cyclohexanone and cyclohexanol – what are thedifferences? Provide an interpretation.2. Why is NaCl added to the aqueous phase when the product is extracted withether during the reduction of cyclohexanone with sodium borohydride?3. How would you modify the reaction conditions to effect the reduction of cyclohexanone with sodium borohydrideusing lithium aluminium hydride as the reducing agent?2c)Outline a method based on extraction techniques for the separation of a mixture of compound B from problem I., and compound A from problem II.