Question

Starting with 1- butyne, how could you make 3-hexanone?

Answer 1

Hint :A hydration reaction is a chemical reaction that occurs when a material reacts with water. Water is added to an unsaturated substrate in organic chemistry, which is commonly an alkene or an alkyne. In the industrial world, this process is used to make ethanol, isopropanol, and butan-2-ol.

Complete Step By Step Answer:
Markovnikov's or Markownikoff's rule specifies the result of several additional reactions in organic chemistry. In 1870, Russian scientist Vladimir Markovnikov proposed the rule. When a protic acid HX or other polar reagent is added to an asymmetric alkene, the acid hydrogen (H) group or electropositive component attaches to the carbon with more hydrogen substituents, while the halide (X) group or electronegative portion attaches to the carbon with more alkyl substituents. This differs from Markovnikov's original definition, which states that the X component is added to the carbon with the fewest hydrogen atoms and the hydrogen atom is added to the carbon with the most hydrogen atoms. The same is true when an alkene combines with water to generate an alcohol in an additional reaction that involves the production of carbocations. The hydroxyl group (OH) binds to the carbon with the most carbon–carbon bonds, while the hydrogen links to the carbon with the most carbon–hydrogen bonds on the opposite end of the double bond.
The hydration of as 1 butyne is done according to Markownikoff's rule. Butanone is formed when butyne reacts with water in the presence of sulphuric acid and mercury (II) sulphate.
 $C{H}_3-C{H}_2-C\equiv CH\underset{H_{g}S{O}_4}{\overset{H_{2}O,H_{2}S{O}_4}{\to }}C{H}_3-C{H}_2-C{H}_2-CO-C{H}_2-C{H}_3$ .

Note :
Processes that do not include a carbocation intermediate, such as free radical addition, may respond by various mechanisms with different regioselectivities than those specified by Markovnikov's rule. Anti-Markovnikov reactions are so named because the halogen adds to the less substituted carbon, which is the polar opposite of a Markovnikov reaction.