When 1-chloro-1-methylcyclopentane is reacted potassium-tert-butoxide in warm tert-butanol a product mixture is obtained. Show the equation for this conversion and clearly mark the major product.
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- The Williamson ether synthesis involves treatment of a haloalkane with a metal alkoxide. Following are two reactions intended to give benzyl tert-butyl ether. One reaction gives the ether in good yield, and the other reaction does not. Which reaction gives the ether? What is the product of the other reaction, and how do you account for its formation?Conversion of an alkene to a halohydrin and internal displacement of a halide ion by an alkoxide ion are both stereoselective. Use this information to demonstrate that the configuration of the alkene is preserved in the epoxide. As an illustration, show that reaction of cis-2-butene by this two-step sequence gives cis-2,3- dimethyloxirane (cis-2-butene oxide).we know that ethers, such as diethyl ether and tetrahydrofuran, are quite resistant to the action of dilute acids and require hot concentrated HI or HBr for cleavage. However, acetals in which two ether groups are linked to the same carbon undergo hydrolysis readily, even in dilute aqueous acid. How do you account for this marked difference in chemical reactivity toward dilute aqueous acid between ethers and acetals?
- Treatment of cyclohexene with iodobenzene under the conditions of the Heck reaction might be expected to give 1-phenylcyclohexene. The exclusive product, however, is 3-phenylcyclohexene. Account for the formation of this product.The base-promoted rearrangement of an -haloketone to a carboxylic acid, known as the Favorskii rearrangement, is illustrated by the conversion of 2-chlorocyclohexanone to cyclopentanecarboxylic acid. It is proposed that NaOH first converts the a-haloketone to the substituted cyclopropanone shown in brackets and then to the sodium salt of cyclopentanecarboxylic acid. (a) Propose a mechanism for base-promoted conversion of 2-chlorocyclohexanone to the proposed intermediate. (b) Propose a mechanism for base-promoted conversion of the proposed intermediate to sodium cyclopentanecarboxylate.Give clear handwritten answer- Give Product by reaction of t-butoxide with (1R,2S)-1-bromo-2-methyl-1-phenylbutane. (With correctstereoisomer of product)
- what is the major monoalkylation product you would expect to obtain of bromobenzene from reaction of chloromethane and AlCl3?Solvolysis of 2-bromo-2-methylbutane in acetic acid containing sodium acetate gives three organic products. What are they?1. Compound A, C9H12, absorbs 3 equivalents of H2 on catalytic hydrogenation over palladium catalyst to give B, C9H18. On the treatment with acidic KMnO4, compound A gives among other things, a ketone that was identified as cyclohexanone. On reaction with NaNH2 in NH3, followed by addition of iodomethane, compound A gives a new hydrocarbon C, C10H14. What are the structures of A , B and C?
- the reaction mechanism for the production of hexachlorophene starting from 2,4,5 trichlorophenol with formaldehyde in the presence of concentrated sulfuric acid. thank you very much !Show the process of synthesizing 2-methyl2-cyclohexenone from 2-methyl cyclohexanone. Write down the stages of the monocyclic reaction process in detail.The hydroboration–oxidation of internal alkynes produces ketones.(a) When hydroboration–oxidation is applied to but-2-yne, a single pure product isobtained. Determine the structure of this product, and show the intermediates in itsformation.(b) When hydroboration–oxidation is applied to pent-2-yne, two products are obtained.Show why a mixture of products should be expected with any unsymmetricalinternal alkyne.