Electron impact ionization mass spectra of 6‐carbamoyloxy‐3‐oxo‐3,6‐dihydro‐2 H ‐pyran and 5 H ‐pyrano[3,2‐ d ]‐oxazole‐2,6‐dione derivatives | Zendy

Couladouros Elias A. | Zendy; Haroutounian Serkos A. | Zendy

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Electron impact ionization mass spectra of 6‐carbamoyloxy‐3‐oxo‐3,6‐dihydro‐2 H ‐pyran and 5 H ‐pyrano[3,2‐ d ]‐oxazole‐2,6‐dione derivatives

Author(s) -

Couladouros Elias A.,

Haroutounian Serkos A.

Publication year - 1995

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570320235

Subject(s) - chemistry , fragmentation (computing) , oxazole , electron ionization , ionization , mass spectrum , pyran , bicyclic molecule , spectral line , ion , stereochemistry , analytical chemistry (journal) , organic chemistry , physics , astronomy , computer science , operating system

The electron impact ionization mass spectra of 6‐carbamoyloxy‐3‐oxo‐3,6‐dihydro‐2 H ‐pyrans show a weak molecular ion peak and a base peak of m/z 84 resulting from a retro Diels‐Alder fragmentation. The bicyclic system 5 H ‐pyrano[3,2‐ d ]oxazole‐2,6‐dione gives a characteristic fragmentation pattern with a very stable fragment of oxazolenone.

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