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2 years ago

Draw the product of the reaction CH3CH2CH2CH2C?CCH3+2Br2??

1 answer:

3 0

I will assume that the sign ? between the C and the CCH3 is a triple bond, and I will represent it by three vertical lines |||

So the reaction is:

CH3CH2CH2CH2C ||| CCH3+2Br2 ---->

This is a typical reaction known as halogenation of alkines.

This is an addition reaction, i.e. the alkyne undergoes an addition of the Br2 (and it also happens with Cl2) to the triple bond to form a tetra halide.

.
 Br Br
 | |
CH3CH2CH2CH2C ||| CCH3+2Br2 ----> CH3 CH2 CH2 CH2 C - C - CH3
 | |
 Br Br

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Answer: (Structure attached).

Explanation:

This type of reaction is an aromatic electrophilic substitution. The overall reaction is the replacement of a proton (H +) with an electrophile (E +) in the aromatic ring.

The aromatic ring in p-fluoroanisole has two sustituents, an halogen and a methoxy group, which are ortho-para directing substituents.

Aryl sulfonic acids are easily synthesized by an electrophilic substitution reaction aromatic using sulfur trioxide as an electrophile (very reactive).

The reaction occurs in three steps:

The attack on the electrophile forms the sigma complex.
The loss of a proton regenerates an aromatic ring.
The sulfonate group can be protonated in the presence of a strong acid (H₂SO₄).

Normally, a mixture of ortho-para substituted products would be obtained. However, since both para positions are occupied, only the ortho substituted product is obtained here.

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2 years ago

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hope this is able to help you :)

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1 year ago

How does a substances temperature change when the average kinetic energy of its particles increases ? When the average kinetic e

Novay_Z [31]

Answer:

The temperature of a substance when the average kinetic energy of its particles increases and decreases when the average kinetic energy decreases.

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Temperature refers to a quantity used to measure the kinetic energy of a system. That is, temperature is defined as an indicator of the average kinetic energy of the particles in a body.

So, since temperature is a measure of the speed with which they move, the higher the temperature the faster they move.

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2 years ago