Which Is the Best Sequence of Reactions for the Following

question 48

Multiple Choice

Which is the best sequence of reactions for the following transformation?

• A)i)HNO₃,H₂SO₄; ii)2EtMgBr,Et₂O; iii)NH₄Cl
• B)i)2EtMgBr,Et₂O; ii)H₃O⁺; iii)HNO₃,H₂SO₄
• C)i)HNO₃,H₂SO₄; ii)NaBH₄,H₂O; iii)2EtMgBr,Et₂O
• D)i)LAH; ii)2EtLi,Et₂O; iii)HNO₃,H₂SO₄,heat
• E)None of these syntheses is satisfactory.

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Definitions:

Operant Conditioning

A method of learning that employs rewards and punishments for behavior.

Wag Its Tail

A movement in animals, particularly dogs, where the tail is moved from side to side, often indicating happiness or excitement.

Classical Conditioning

Classical conditioning is a learning process in which an innate response to a potent stimulus becomes triggered by a previously neutral stimulus.

Negative Reinforcement

A process in behavioral psychology where the removal of an undesirable stimulus strengthens a behavior.