(a)
Interpretation:
The structure of compound B that is obtained by the contamination of
Concept introduction:
The
(b)
Interpretation:
A curved-arrow mechanism for the formation of compound B from compound A is to be drawn.
Concept introduction:
The chemical reaction in which the double present in the allylic compound migrates to the adjacent carbon atom through nucleophilic substitution reaction is known as allylic rearrangement. Both
(c)
Interpretation:
Whether compound A or compound B is the major isomer at equilibrium is to be stated with explanation.
Concept introduction:
The chemical reaction in which the double present in the allylic compound migrates to the adjacent carbon atom through nucleophilic substitution reaction is known as allylic rearrangement. Both
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Organic Chemistry
- 3. (a) Draw the structure of 1-ethylcyclohexene (B). (b) Draw the structures of the two possible products that can result from treating B with hydrogen bromide and very briefly explain which one will be favoured). (c) Draw the curly arrow mechanism for the formation of the favoured productarrow_forwardIn an SN2 reaction between 2-chlorobutane and iodide ion, what happens to the rate of the reaction if: (a) the concentration of 2-chlorobutane is doubled? (b) the concentration of iodide is doubled?arrow_forwarda) When (Z)-3-methylhex-3-ene undergoes hydroboration–oxidation, two isomeric products are formed. Give their structures, and label each asymmetric carbon atom as (R) or (S). What is the relationship between these isomers?arrow_forward
- Consider the reaction of (R)-2-chloro-3-methylbutane with sodium iodide to form aproduct.1(a) Draw the reaction scheme with the correct stereochemistry (reactant + NaI → product+ NaCl). Circle the nucleophile and draw a rectangle around the electrophile. 1(b) What is the symbol used for mechanism shown in 1(a)?1(c) If the sodium iodide was replaced with sodium hydroxide, the product is anALKENE. Draw a reaction MECHANISM to show how this happens.1(d) Draw the reaction energy diagram for the reaction in 1(c) and label the activationenergy.1(e) Using any alcohol with five carbons, and any carboxylic acid with six carbons, draw areaction to show how we would make an ester. 1(f) Describe the practical on esters.arrow_forwardWhen tert-butyl bromide is heated with an equal amount of ethanol in an inert solvent, one of the products is ethyl tert-butyl ether. (a) What happens to the reaction rate if the concentration of ethanol is doubled?arrow_forward(d) When butane, CH3CH2CH2CH3 and bromine gas, Br2 is exposed to sunlight, monobrominated product are produced. The reaction equation is given below: uv CH;CH,CH,CH3 + Br2 A + B (i) State the type of reaction. (ii) What is the function of the sunlight in the reaction? (iii) Draw the structure of monosubstituted products, A and B. Label the major product. (iv) Draw the propagation steps in the mechanism for the formation of the major product.arrow_forward
- (b) Describe the hazards of (i) trioxygen: (ii) hydroxide ion; (ii) hydrogen sulfide. (c) Explain why an aqueous solution of sodium sulfide has an odor of hydrogen sulfide. (d) (11) Reduction of H,CCHCHO with NABH4 gives a product different from that of catalytic hydrogenation (H2 /Ni). What are the products?arrow_forwardWhen ethyl bromide is added to potassium tert-butoxide, the product is ethyl tert-butyl ether.(a) What happens to the reaction rate if the concentration of ethyl bromide is doubled?arrow_forwardAn ion with a positively charged nitrogen atom in a three-membered ring is called an aziridinium ion. The following aziridinium ion reacts with sodiummethoxide to form compounds A and B: If a small amount of aqueous Br2 is added to A, the reddish color of Br2 persists, but the color disappears when Br2 is added to B. When the aziridinium ion reacts with methanol, only A is formed. Identify A and B.arrow_forward
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