McLafferty rearrangement

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• McLafferty rearrangement — The McLafferty rearrangement is a reaction observed in mass spectrometry. It is sometimes found 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… …   Wikipedia

• Fred McLafferty — Infobox Scientist image width = 150px name = Fred W. McLafferty birth date = birth date and age|1923|5|11 birth place = Evanston, Illinois residence = United States nationality = United States field = Chemist work institutions = Purdue University …   Wikipedia

• History of mass spectrometry — The history of mass spectrometry dates back more than one hundred years and has its roots in physical and chemical studies regarding the nature of matter. The study of gas discharges in the mid 19th century led to the discovery of anode and… …   Wikipedia

• Mass spectrum analysis — is an integral part of mass spectrometry.[1][2] Organic chemists obtain mass spectra of chemical compounds as part of structure elucidation and the analysis is part of every organic chemistry curriculum. Co …   Wikipedia

• Mass spectrum — Electron ionization mass spectrum of toluene [4]. Note parent peak corresponding to molecular mass M = 92 (C7H8+) and highest peak at M 1 = 91 (C7H7+, quasi stable tropylium cation). A mass spectrum is an inten …   Wikipedia

• Alpha cleavage — Alpha cleavage, (α cleavage) in organic chemistry, refers to the act of breaking the carbon carbon bond,cite book |author=Hathaway, Bruce A. |authorlink= |editor= |others= |title=Organic chemistry the easy way |edition= |language=… …   Wikipedia

• Fragmentation (chemistry) — Fragmentation is a type of chemical dissociation. Fragmentation of a molecule can take place by a process of heterolysis or homolysis. It is a phenomenon observed in mass spectrometry where it is used as a tool to find the structural formula of a …   Wikipedia