Question

Осуществите цепочку превращений, укажите условия проведения реакций: CH2=CH2 → CH ≡ CH → C6H6

Answer 1

CH2=CH2 → CH ≡ CH+H2(условие- катализатор)

CH ≡ CH → C6H6(условие- температура)

 

 

Answer 2

Chain of Transformations: CH2=CH2 → CH ≡ CH → C6H6

To understand the chain of transformations from CH2=CH2 to C6H6, let's break it down step by step:

1. Conversion of CH2=CH2 to CH ≡ CH: - The first step involves converting ethene (CH2=CH2) to ethyne (CH ≡ CH), also known as acetylene. - This transformation is achieved by breaking the double bond in ethene and forming a triple bond between the carbon atoms. - The reaction is typically carried out under high temperature and pressure conditions, using a catalyst such as palladium or platinum. - The equation for this reaction is: CH2=CH2 → CH ≡ CH

2. Conversion of CH ≡ CH to C6H6: - The second step involves converting ethyne (CH ≡ CH) to benzene (C6H6). - This transformation is achieved through a process called benzene synthesis or cyclohexatriene synthesis. - The reaction is typically carried out at high temperatures (around 500-600°C) in the presence of a catalyst, such as aluminum chloride (AlCl3) or iron (Fe). - The equation for this reaction is: CH ≡ CH → C6H6

It's important to note that the chain of transformations from CH2=CH2 to C6H6 involves two separate reactions. The first reaction converts ethene to ethyne, and the second reaction converts ethyne to benzene.

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