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Problem 9.35i Propose a structure that is consistent with the set of 1H NMR data. IR data is also provided. C4H803 d (ppm) Sp

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C4H8O3: Degree of unsaturation = ((2C+2)+N-H-X)/2 = (10-8)/2 = 1 IR shows 2500-3550: borad peak -COOH present 1715: C=O stret

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