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deb sss saha Grade: 11
        

Sir,


Please explain what is sterioselective reaction and steriospecific reaction?Give some examples?

7 years ago

Answers : (2)

Vijay Luxmi Askiitiansexpert
357 Points
										

Stereochemistry, a subdiscipline of chemistry, involves the study of the relative spatial arrangement of atoms


within molecules.


Stereospecific Reaction: A reaction in which the stereochemistry of the reactant completely determines the


stereochemistry of the product without any other option.



Stereoselective Reaction: A reaction in which there is a choice of pathway, but the product stereoisomer is


formed due to its reaction pathway being more favourable than the others available.



7 years ago
Vijay Luxmi Askiitiansexpert
357 Points
										












Hi Deb,


 


        A reaction in which the stereochemistry (i.e., cis-trans, E – Z or d & L or R & S) of the reactant determines the setereochemistry of the product is called as stereospecific reaction. Ex -> substitution reactions of alkyl halides.


 


        While, if a reaction proceeds such that there is a choice of pathway, but the stereospecific product is formed due to its reaction pathway being move favourable than the others available is called as stereoselective reaction.


 


        Ex -> an internal alkyne of reaction with Na in liquid ammonia always forms trans alkene.





 

7 years ago
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