Mass spectrometry of five classes of trityl compounds‐loss of 12C from (C6H5)313CH

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Abstract
The mass spectra of 25 triphenylmethyl (trityl) substituted compounds have been recorded. The trityl cation m/e 243 appears as a peak of major intensity for all classes of compounds examined; these contained trityl‐carbon, trityl‐nitrogen, trityl‐oxygen or trityl‐sulfur bonds. Fragmentation of the non‐trityl portion of the molecules produced simple ions whose origin was predictable or of low intensity. A mechanism for the decay of the trityl cation is presented which is based upon retention of the α‐carbon. Supporting evidence was afforded by mass spectral analysis of (C6H5)313CH in which all fragments from the trityl cation appear to retain nearly all of the 13C.

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