Abstract
AbstractAs predicted by semi‐empirical molecular orbital calculations, the methane chemical ionization mass spectra of alkylcyclopropanes exhibit both proton addition and hydride abstraction processes; both the calculations and the observed substituent effects suggest the common intermediacy of gas phase cyclopropylcarbinyl cations. In agreement with this hypothesis are the results of an isotopic labeling experiment which identifies the reactive site as the cyclopropylcarbinyl carbon.
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