0243Pb59-09.cwk (WP)

0243Pb59-09.cwk (WP) - δ(CDCl 3 7.3(m 5H 5.0(s 2H 1.9(s 3H...

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Problem 59, Chemistry 0243 - 2009 Compound X shows a mass spectrum with m/e = 150. Its IR spectrum features bands at 1740 cm -1 and 1250 cm -1 . The 1 H NMR spectrum is summarized below:
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Unformatted text preview: δ (CDCl 3 ): 7.3 (m, 5H), 5.0 (s, 2H), 1.9 (s, 3H) Provide a structure for X and explain your reasoning....
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