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A Reagent Selection Problem

In each reaction box enter a single letter designating the best reagent and conditions selected from the list at the bottom of the page.

Reaction 1

 First Step

Second Step

Reaction 2
First Step

Second Step
Third Step

Reaction 3

 First Step

Second Step

Reaction 4

 First Step

Second Step

Reaction 5
First Step

Second Step
Third Step
A. NaBH4 in alcohol. B. C6H5CO3H in CH2Cl2. C. PCC in CH2Cl2. D. CH3ONa in CH3OH
E. B2H6 in THF. F. H2O2 in aqueous NaOH. G. H3PO4 and heat. H. AlCl3 in C6H6.
I. O3 in CH2Cl2. J. Br2 in CH2Cl2. K. 20% KOH & heat. L. C6H5Li in ether.

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