8. Mr. Bright is an analytical chemist at Innovative Lab Solutions Inc. He recei

Question

8. Mr. Bright is an analytical chemist at Innovative Lab Solutions Inc. He receives a mystery compound and four possible structures for the mystery 0 ?? C+ Mr. Bright obtained the IR spectrum of the mystery compound and found an intense absorption at 1690 cm-1. He then obtained the carbon NMR spectrum of the compound and found peaks at 197, 142, 137, 131, 125, and 27 ppm. Based on his results he concluded that the correct structure of the mystery compound is A. Do you agree with Mr. Bright's conclusion? Why or why not (5 points)

Explanation / Answer

In IR data the IR peak around 1690 cm-1 indicate the presence of carbonyl group(either aldehyde or ketone)

Now from 13C NMR the peak in alifatic region indicate this is acetophenone.(compound - A)

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