McLafferty rearrangement

The McLafferty rearrangement is a phenomenon observed in mass spectrometry. Usually, it is observed that a molecule containing a keto-group undergoes β-cleavage, with the gain of the γ-hydrogen atom. This rearrangement may take place by a radical or ionic mechanism.

An example of the McLafferty rearrangement

An example of the McLafferty rearrangement

References

1. Gross ML (2004). "Focus in honor of Fred McLafferty, 2003 Distinguished Contribution awardee, for the discovery of the "McLafferty Rearrangement"". J. Am. Soc. Mass Spectrom. 15 (7): 951–5. doi:10.1016/j.jasms.2004.05.009. PMID 15234352.
2. Nibbering NM (2004). "The McLafferty rearrangement: a personal recollection". J. Am. Soc. Mass Spectrom. 15 (7): 956–8. doi:10.1016/j.jasms.2004.04.025. PMID 15234353.

External links

• Compendium of Chemical Terminology, McLafferty rearrangement, accessed 2 Nov 2006.
• Mass Spectroscopy Terms wiki
• Fred McLafferty Faculty Webpage at Cornell University