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- a)Reaction A give two products while B give one
- b)Both give single product
- c)Reaction B give two products while A give one
- d)Both give two products
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
a)Reaction A give two products while B give oneb)Both give single prod...
The given reactions involve the partial hydrogenation of an alkyne.
Reaction A: H2, Pd/BaSO4 (Lindlar's Catalyst)
Lindlar's catalyst is used to hydrogenate alkynes to cis-alkenes. It adds hydrogen to the alkyne in a syn addition manner, producing a cis-alkene. For the given compound, the alkyne would be converted to a cis-alkene.
Reaction B: Na, Liquid NH3 (Birch Reduction)
The Birch reduction reduces alkynes to trans-alkenes via an anti addition of hydrogen. For the given compound, the alkyne would be converted to a trans-alkene.
Given the molecular structure in the image, let's analyze the products of each reaction:
- Lindlar's Catalyst (Reaction A):
- Converts the alkyne to a cis-alkene.
- The alkyne shown will be converted to a single cis-alkene product because the reaction is stereoselective.
- Birch Reduction (Reaction B):
- Converts the alkyne to a trans-alkene.
- The alkyne shown will be converted to a single trans-alkene product because the reaction is stereoselective.
Conclusion:
Both reactions A and B give single products. Therefore, the correct answer is:
Option B: Both give single product
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a)Reaction A give two products while B give oneb)Both give single prod...
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a)Reaction A give two products while B give oneb)Both give single prod...
B will have entiomers
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