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3 votes

H-NMR: Why are coupling and integration values not matching?

I finally found the answer to my question on page 88 of supporting information to the first reference[1], which gives the $^1\ce{H}$-NMR data as follows: $(\pu{400 MHz}, \ce{CDCl3})$: 7.75-7.20 (m, ...
jona173's user avatar
  • 539
0 votes

Diastereotopic methylene protons in achiral molecules

I am simply responding to the cyclohexane structure drawn here and the analysis given. I agree that the ChemDraw simulation is in error, but in fact, cyclohexane structures catch many people out. ...
Ruth's user avatar
  • 1
6 votes

What is the difference between 2,6-di-tert-butyl-4-methylphenol and 3,5-di-tert-butyl-4-methylphenol 1H NMR spectra?

Indeed the shifts and integrals match up with those reported for butylated hydroxytoluene (BHT), a very common antioxidant used as a preservative, see for instance the list of NMR chemical shifts of ...
Buck Thorn's user avatar
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