identify the compound that on hydrogenation produces an optically active compound from the following compounds??
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Optically active compound-
An optically active compound is one which is capable of rotating the plane of vibration of polarized light to the right or left.
◆ Examples-
Following compounds on hydrogenation gives optically active compound.
1. CH3-CH=CH-CH(Br)-CH3
2. CH2=C(CH3)-CH(Cl)-CH3
An optically active compound is one which is capable of rotating the plane of vibration of polarized light to the right or left.
◆ Examples-
Following compounds on hydrogenation gives optically active compound.
1. CH3-CH=CH-CH(Br)-CH3
2. CH2=C(CH3)-CH(Cl)-CH3
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Answer:
Hydrogenation of A:
CH2 = CH CH(Br) CH2 CH3 on hydrogenation CH3 CH2 CH(Br) CH2 CH3
The product formed by the hydrogenation of compound A does not have a chiral carbon. Therefore, it is not optically active.
Hydrogenation of B:
CH3 CH = CH CH(Br) CH3 on hydrogenation CH3 CH2 CH2 CH(Br) CH3
The product formed by the hydrogenation of compound B has a chiral carbon. Therefore, it is optically active.
Explanation:
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