The m/z value of the detectable fragment formed by McLafferty like rearrangement of the following compound in… · ABC26OR0735
Subject: Organic Chemistry · Chapter: Organic Spectroscopy · Topic: Organic Spectroscopy – General · Exam: GATE 2000-2022 · Marks: 2 · Difficulty: Hard
The m/z value of the detectable fragment formed by McLafferty like rearrangement of the following compound in mass spectrometer is ____ 
Answer
Answer (as printed): 41
The options are missing from the source scan for this question, so there is nothing here for this letter to point at. The letter is what the book printed.
Explanation
Answer: m/z 41 — In 4-methylpentanenitrile the γ-H is transferred to N with β-cleavage, which expels propene and leaves the [CH₂=C=NH]•⁺ ion at m/z 41.
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