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- What is the complete mechanism for this F!she rxn?Below is the equation for a nucleophilic substitution reaction and some experimental data. CH3CH2Br + CH3COO- ⇌ CH3CH2CO2CH3 + Br- Rate = k [CH3CH2Br][CH3COO-] Which mechanism would best fit the data?(b) Consider the reaction of 1-bromobutane with a large excess of ammonia (NH3). Draw the reactants, the transition state, andthe products. Note that the initial product is the salt of an amine (RNH3+ Br - ), which is deprotonated by the excess ammonia to give the amine.
- Q. Carry out following conversion. Provide suitable reagents, reaction conditions and also mechanism of the reactions. Do (ii) as soon as possible.Q. Carry out following conversion. Provide suitable reagents, reaction conditions and also mechanism of the reactions. Do (iii) as soon as possible.The reactants, intermediates, final products, and all curved arrows showing bonds forming andbreaking are collectively referred to as the mechanism of a reaction. For the following reactants: a. Explain why the original statement of Markovnikov’s rule does not help in this case, but themodern restatement of Markovnikov’s rule tells you which carbon will get the X (Cl). b. Show the mechanism of the most likely addition reaction between the reactants.
- A student proposes the following reaction mechanism for the reaction in Model 6. Which step inthis mechanism is least favorable? Explain your reasoning.Plastic photochromic sunglasses are based on the following reversible rearrangement of a dye inside the lenses that occurs when the lenses are exposed to sunlight. The original dye absorbs UV light but not visible light and is thus colorless, while the rearrangement product absorbs visible light and is thus darkened. (a) Show the mechanism of the rearrangement. (b) Why does the rearrangement product absorb at a longer wavelength (visible light) than the original dye (UV)?In the presence of a radical initiator (Z•), tributyltin hydride (R3SnH, R = CH3CH2CH2CH2) reduces alkyl halides to alkanes: R′X + R3SnH → R′H + R3SnX. The mechanism consists of a radical chain process with an intermediate tin radical: This reaction has been employed in many radical cyclization reactions. Draw a stepwise mechanism for the following reaction.
- Q. Carry out following conversion. Provide suitable reagents, reaction conditions and also mechanism of the reactions. Do (i) as soon as possibleOrganic Chemistry - nucleophilic substitution and elimination rxns chapterDraw the mechanism ffrom benzaldehyde to this using: i)NaBH4 ii)TsCl, py iii)NaCN iiii)H+, H2O