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Which Is the Best Sequence of Reactions for the Following

question 31

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Which is the best sequence of reactions for the following transformation? Which is the best sequence of reactions for the following transformation?   A)  i) HNO<sub>3</sub>,H<sub>2</sub>SO<sub>4</sub>;ii) 2EtMgBr,Et<sub>2</sub>O;iii) NH<sub>4</sub>Cl B)  i) 2EtMgBr,Et<sub>2</sub>O;ii) H<sub>3</sub>O<sup>+</sup>;iii) HNO<sub>3</sub>,H<sub>2</sub>SO<sub>4</sub> C)  i) HNO<sub>3</sub>,H<sub>2</sub>SO<sub>4</sub>;ii) NaBH<sub>4</sub>,H<sub>2</sub>O;iii) 2EtMgBr,Et<sub>2</sub>O D)  i) LAH;ii) 2EtLi,Et<sub>2</sub>O;iii) HNO<sub>3</sub>,H<sub>2</sub>SO<sub>4</sub>,heat E)  None of these syntheses is satisfactory.


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