Ch2ch2och2cl can undergo which substitution reaction
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Hey Buddy here is ur answer !!
It depends.
We define “substitution” reaction based on the result. If compound A-X is converted to compound A-Y, we call it substitution.
e.g. : CH3-Br + H2S → CH3-SH + HBr
In most cases, alkenes and alkynes react via. addition reactions, because the multiple bonds contained in alkenes and alkynes offer sufficient electron density to trigger an electrophilic reaction. A typical addition reaction will result in addition of atoms, without loss of any portion of either of the reactant molecules.
e.g. CH2=CH2 + Br2 → Br-CH2-CH2-Br.
Now, there are reactions that APPEAR to be “substitution” of an alkene, but in fact is the result of an “addition-elimination” sequence of reactions.
CH2=CH2 + Cl2 → Cl-CH2-CH2-Cl → Cl-CH=CH2 + HCl.
Here, ethylene is converted to vinyl chloride by “substitution” of a hydrogen by chlorine. But, as you can see from the sequence above, this result is obtained by first an addition reaction of Cl2 to form ethylene dichloride (1,2-dichloroethane) followed by the elimination of HCl resulting in the formation of vinyl chloride.
1,2-dichloroethane is a stable molecule, and can be isolated from the first reaction. Therefore, it is described as a “reaction intermediate”.
As can be seen from above, alkenes CAN undergo substitution reaction, but it is actually the result of a sequence of “addition-elimination” reactions.
In case of terminal alkynes (R-C_=C-H), you can perform substitution reactions by replacing the acetylenic hydrogen with other metals. This is more of an acid-base reaction, but the result can be described as “substitution”.
R-C_=C-H + 2Li → R-C_=C-Li + LiH
In conclusion, alkenes and alkynes CAN undergo substitution reactions, but these are clearly the result of reactions that are more accurately described as “addition-elimination” sequence or “acid-base” reaction.
Hope u like !!
》》 BE BRAINLY 《《
It depends.
We define “substitution” reaction based on the result. If compound A-X is converted to compound A-Y, we call it substitution.
e.g. : CH3-Br + H2S → CH3-SH + HBr
In most cases, alkenes and alkynes react via. addition reactions, because the multiple bonds contained in alkenes and alkynes offer sufficient electron density to trigger an electrophilic reaction. A typical addition reaction will result in addition of atoms, without loss of any portion of either of the reactant molecules.
e.g. CH2=CH2 + Br2 → Br-CH2-CH2-Br.
Now, there are reactions that APPEAR to be “substitution” of an alkene, but in fact is the result of an “addition-elimination” sequence of reactions.
CH2=CH2 + Cl2 → Cl-CH2-CH2-Cl → Cl-CH=CH2 + HCl.
Here, ethylene is converted to vinyl chloride by “substitution” of a hydrogen by chlorine. But, as you can see from the sequence above, this result is obtained by first an addition reaction of Cl2 to form ethylene dichloride (1,2-dichloroethane) followed by the elimination of HCl resulting in the formation of vinyl chloride.
1,2-dichloroethane is a stable molecule, and can be isolated from the first reaction. Therefore, it is described as a “reaction intermediate”.
As can be seen from above, alkenes CAN undergo substitution reaction, but it is actually the result of a sequence of “addition-elimination” reactions.
In case of terminal alkynes (R-C_=C-H), you can perform substitution reactions by replacing the acetylenic hydrogen with other metals. This is more of an acid-base reaction, but the result can be described as “substitution”.
R-C_=C-H + 2Li → R-C_=C-Li + LiH
In conclusion, alkenes and alkynes CAN undergo substitution reactions, but these are clearly the result of reactions that are more accurately described as “addition-elimination” sequence or “acid-base” reaction.
Hope u like !!
》》 BE BRAINLY 《《
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