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- When cyclohexanol is dehydrated to cyclohexene, a gummy green substance forms onthe bottom of the flask. Suggest what this residue might be, and propose a mechanismfor its formation (as far as the dimer).Suggest ways of synthesizing the following compounds, how would youmake the disconnections and what are the synthons?Suggest ways of synthesizing the compound, how would youmake the disconnections and what are the synthons?
- Electrophilic nitration of benzoic acid gives almost exclusively 3-nitrobenzoic acid. By drawing the appropriate resonance forms of the intermediate cations resulting from attack of [NO2]+, explain this result.(19, 8, 3) Specify a synthetic scheme that would produce the compound shown above in the fewest steps possible. Use one of the starting materials shown together with any of the available reagents. Give the number of the starting material followed by the letters of the reagents in the order of their use, for example: 3be.Give the reagents and conditions to provide the following transformations, usethe 1. 2. etc. notations as appropriate
- 3. Benzalacetophenone can be nitrated to give the mononitro derivative.(a) Provide the structure of the mononitro derivative.(b) If a second nitro group is introduced, where would it enter? Give the structure of theproduct.Starting with benzene, toluene, or phenol as the only sources of aromatic rings, show how to synthesize the following. Assume in all syntheses that mixtures of ortho-para products can be separated into the desired isomer. Q.)p-Chlorobenzoic acidGiven this retrosynthetic analysis, show how meclizine can be synthesized from the four named organic starting materials.
- Sketch and explain the IR, UV, mass, and NMR (1H and 13C) spectroscopy data of BenzonitrileWrite the synthesis of the target compounds by starting from each benzene given in the following items and by writing the mechanism of each step separetely.Starting with benzene, toluene, or phenol as the only sources of aromatic rings, show how to synthesize the following. Assume in all syntheses that mixtures of ortho-para products can be separated into the desired isomer. Q.)m-Nitrobenzenesulfonic acid