Question

Draw the structure of the compound whose molecular formula is C9H10O and has the following proton NMR data:

triplet at 1.2 ppm, integrates to 3H

quartet at 2.7 ppm, integrates to 2H

doublet at 7.3 ppm, integrates to 2H

doublet at 7.7 ppm, integrates to 2H

singlet at 9.9 ppm, integrates to 1H

What are the reagents needed for each of the following transformations?

CH3CH2OH a., CH3CH2Br 6 ChọCH2CHCH3 CH3CH2CCH3 CH3CH2CCH3

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Answer #1

Ans.1

4-ethylbenzaldehyde

Cal 6. Hb2 a (9,9 ppm) b, bz (7.3 ppm) 4 C2 ( 7.7 PPom) dida (2,70pm] 0 e, qez (1.2 ppm) HC2 CH₂ CH3 = 2 а е for Proton (a) N

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