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Chapter 7: Q14P (page 301)

What ketones would be formed from the acid-catalyzed addition of water to 3-heptyne?

Short Answer

Expert verified

R-C鈮-R' + H鈧侽 鈫� R-CH鈧�-CO-R' + R-CO-CH鈧�-R'

As here unsymmetrical alkyne is there so two ketones will form:

Step by step solution

01

What is acid catalysed addition of water

Acid-catalyzed addition of water is also called as acid catalyzed hydration. In this reaction water added with an unsaturated substrate in presence of an acid. Here the acid acts as the catalyst. The common acid catalysts are sulphuric acid and phosphoric acid.

02

Final answer

As here unsymmetrical alkyne is there so two ketones will form:

Both the ketones formed with the oxygen attached with triple bonded carbon atom and H2 attached with other triple bonded carbon atom.

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Most popular questions from this chapter

What is the major product of the reaction of 1 mol of propyne with each of the following reagents?

a.HBr (1 mol)

b.HBr (2 mol)

c.Br2(1 mol)/CH2Cl2

d.Br2 (2 mol)/CH2Cl2

e.aqueous H2SO4, HgSO4

f.R2BH in THF followed byH2O2/HO- /H2O

g.excess H2, Pd/C

h.H2/Lindlar catalyst

i.sodium amide

j.the product of part i followed by1-chloropropane

What is the molecular formula of a hydrocarbon that has 1 triple bond, 2 double bonds, 1 ring, and 32 carbons?

a. Starting with 3-methyl-1-butyne, how can you prepare the following alcohols?

1. 2-methyl-2-butanol

2. 3-methyl-1-butanol

b. In each case, a second alcohol would also be obtained. What alcohol would it be?

What reagents should be used to carry out the following synthesis?

Which alkyne would be the best one to use for the synthesis of each of the following ketones?
See all solutions

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