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The mass spectrometry of volatile derivatives - II: N-alkyl trifluoracetamidesFor Part I see Ref. I. (1969)

Saxby, M. J.

Chichester : Wiley-Blackwell

Biological Mass Spectrometry 2 (1969), S. 33-36

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ISSN: 0030-493X

Keywords: Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Under electron-impact, N-alkyl trifluoracetamides exhibit peaks due to [CF3]+ and [M — CF3]+. Ions corresponding to [COCF3]+ are absent. The base peak in many straight chain derivatives occurs at m/e 126 due to alkyl radical loss from the molecular ion; the mass of this ion rising to m/e 140 in the α-substituted N-sec-butyltrifluoracetamide and to m/e 154 in the tert-butyl derivative. High resolution measurements on a number of peaks indicate that they originate by loss of HF from other fragment ions.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/oms.1210020104

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