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In each reaction box, place the best reagent and conditions from the list below. Your reagent for the first step is incorrect. You need to form an intermediate that can be converted to an alkyne in the second step. Br2 2) excess NaNH2 CH3CH2Br Ha.Lindlar catalyst 3) PBr3 CH3Br H2O, H2SO4,HgSO4 NaBH4 H202, NaOH, H20excess NaNH2 Br2 Na, NH3(0) 2 equiv. NaNH2

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