Question from NMRWiki Q&A forum two triplets and no quartet?

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[Question from NMRWiki Q&A forum] two triplets and no quartet?

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03-14-2011, 05:44 PM

nmrlearner

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two triplets and no quartet?

two triplets and no quartet?

Hello all, I have spent approximately 4 hours trying to analyze an H NMR consisting of two doublets of doublets (peaks at 8.0 and 6.9) and two triplets (peaks at 3.8 and 2.6). The doublets of doublets each contain 2 H's and the triplets each contain 3 H's making the ratio 2:2:3:3.

The molecular formula for the molecule is C9H10O2 and C NMR show 7 peaks (24, 58, 117, 131, 132, 165, and 198)

I have been working so hard on this but cannot seem to come up with a structure to fit the NMR. I can't seem to get two triplets each with 3 equivalent H's without a quartet. If anyone has some tips and could share it would be so much appreciated.

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