Question: Compound E has the spectral features given below. What is its structure? MS (m/z): M 202 IR (cm -1 ): 30303080, 2150 (very weak),

Compound E has the spectral features given below. What is its structure?

MS (m/z): M⨥ 202

IR (cm-1): 3030–3080, 2150 (very weak), 1600, 1490, 760, and 690

1H NMR (δ): narrow multiplet centered at 7.34

UV (nm): 287 (∈ = 25,000), 305 (∈ = 36,000), and 326 (∈ = 33,000)

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