The structure of the compounds that matches the 1H ~ NMR data given below is 1 H ~ NMR ~ DMSO-d6: delta 7.75 dd, J=8 . 8 , 2 . 4 Hz, 1H, 7 . 58(d, J=2 . 4 ~ H z, 1H), 6 . 70(d, J=8 . 8 Hz, 1H), 6.50 (broad s, 2H), 3.80 (s, 3H).

ABC26OR0976 · Organic Spectroscopy

Subject: Organic Chemistry · Chapter: Organic Spectroscopy · Topic: Combined Structure Elucidation · Exam: NET DEC 2015 · Marks: 2 · Difficulty: Hard

The structure of the compounds that matches the $\mathrm{1H ~ NMR}$ data given below is ${ }^{\mathrm{1}} \mathrm{H ~ NMR ~ DMSO}-\mathrm{d}_{\mathrm{6}}: \delta 7.75 \mathrm{dd}, \mathrm{J}=8 . 8 , 2 . 4 \mathrm{Hz}, \mathrm{1H}, \mathrm{7 . 58}(\mathrm{d}, \mathrm{J}=\mathrm{2 . 4} ~ H z, \mathrm{1H}), \mathrm{6 . 70}(\mathrm{d}, \mathrm{J}=\mathrm{8 . 8}$ Hz, 1H), 6.50 (broad s, 2H), 3.80 (s, 3H).

(a)

(b)

(c)

(d)

Answer

Answer (as printed): B

Explanation

No explanation was printed for this question.

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