Problem 6.17

Identify the unknown from its 70 eV EI mass spectrum and some additional information.

The positive-ion CI mass spectrum, isobutane reagent gas, showed a strong signal at m/z 143 and a weaker signal at m/z 145.
The presence of halogens can be excluded from the synthetic pathway.

Spectrum of an unknown compound

Answered all questions? Want to see the solutions page?