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Unformatted text preview: bond dissociation energies: PhCH 2 Br = 58 kcal/mole; BrPh = 81 kcal/mole; "Ph" stands for the phenyl group); c. calculate the overall H for each reaction; d. draw an approximate energy diagram for the two propagation steps of each reaction, putting both curves on the same graph; e. briefly explain which reaction (I or II) happens faster; f. briefly explain which reaction (I or II) gives a more stable product. Br II) + e. O + Br 2 1. H 3 C-Li + 2. H 2 O OH + HBr CH 3 + HBr f. O + Br 2 + [(CH 3 ) 2 ] -[CuLi] + O-[CH 3 CuLi] + I) CH 3 4. For these two reactions: H 2 O O h CH 3 h...
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