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Electron impact studies. CIII—Negative ion mass spectra of naturally occurring compounds: Nitrobenzoyl derivatives of amino esters

✍ Scribed by B. Jane Stapleton; John H. Bowie

Publisher: John Wiley and Sons
Year: 1976
Tongue: English
Weight: 366 KB
Volume: 11
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210110416

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✦ Synopsis

Abstract

The negative ion mass spectra of p‐nitrobenzoyl derivatives of amino esters show pronounced molecular anions and characteristic fragmentation patterns. Fragment anions observed in the spectra of o‐nitrobenzoyl analogues arise by various interactions between the nitro and amino ester groups. No fragmentation of the amino ester residue is observed for the m‐nitrobenzoyl derivatives, but the +E spectra of these systems can be used to provide definitive structural information.

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