Worksheet: Attached Proton Tests

In this worksheet, we will practice interpreting attached proton test (APT) or distortionless enhancement by polarization transfer (DEPT) spectra.

Q1:

Distortionless Enhancement by Polarisation Transfer (DEPT) would allow which of the following NMR peaks to be distinguished from one another?

  • AOrtho, meta, and para substituent groups on a benzene ring
  • BHydroxyl groups from amine groups
  • CAromatic carbons from aliphatic carbons
  • DMethylene groups from methyl groups

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