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- Describe a synthetic plan with suitable justification of the sequence of reactions you would understate to complete synthesis of compound 1 from compounds 2,3,4. Suggest suitable reagents1. Discuss a disadvantage of Friedel - Crafts acylation reaction 2. Propose a mechanism for the formation of (ii)(a) Illustrate the following name reactions by giving example :(i) Cannizzaro’s reaction(ii) Clemmensen reduction(b) An organic compound A contains 69.77% carbon, 11.63% hydrogen and rest oxygen. The molecular mass of the compound is 86. It does not reduce Tollen’s reagent but forms an addition compound with sodium hydrogen sulphite and gives positive iodoform test. On vigorous oxidation it gives ethanoic and propanoic acids. Derive the possible structure of compound A.
- Draw/outline a reasonable and detailed mechanism for the dehydration of 2-methylcyclohexanol catalyzed by phosphoric acid. Use curved arrows to show the flow of electrons and draw the structures of all intermediates and byproducts formed in the reaction. Predict and rationalize the expected product distribution based on thermodynamic aspectsSuggest reactivity of compound A, B and C in increasing order of E2 reactionSuggest and explain two synthetic methods for the conversion of compound 6 to compound 4. Include side reactions
- Wolff-Kishner reduction of compound W gave compound A. Treatment of A with m-chloroperbenzoic acid gave B which on reduction with LiAH4 gave C. Oxidation of compound C with chromic acid gave D (C9H14O). Suggest the structures for A, B, C, and D.A student was given from the list of the compounds below A, B and D blindly and asked to identify them all. He treated each of them with Brady's reagent (2,4-ditrophenylhydrazine) and isolated a bright yellow compound for one of them, but the other two gave false negatives. The student reasoned that the false negatives may be due to sterics and, on further thinking, it dawned on him that he might be able to rule out one of the false negatives with the haloform test. What compound did he find compatible with the haloform test? That compound did indeed give a false negative in the Brady test. Which of the other two was positive in the Brady test? A = haloform B = Brady A = haloform D = Brady B = haloform A = Brady B = haloform D = Brady D = haloform A = Brady D = haloform B = Brady3. Obtain acetophenone and acetaldehyde by reaction of glycols with periodic acid. Justify your answer with the reaction mechanism.
- Please show the electron-flow mechanism of the general synthesis of fluorobenzene from aniline, this involves predicting major and by-products using electronic and structural effects. The arrow push mechanism must be shown.The following equation shows the bromination of compound 1. Propose a structure for product D and a curved arrow mechanism that accounts for its formation featuring the initiation, propagation and termination steps. can you also discuss the stereochemical outcome.Compound A was prepared by sequential Suzuki cross-coupling reactions.First, compound 1 was treated with an aryl iodide to give compound 2, which was then treated with an aryl boronic acid to produce compound A. How wood the structures for the aryl iodide, boronic acid, and compound 2 look like.