Mass spectra of 1,3,5-triarylpentane-1, 5-diones: formation and decomposition of pyrilium cation from the molecular ion.
Electron impact mass spectra of 1,3,5-triarylpentane-1,5-diones are reported. All compounds studied show a tendency to eliminate a water molecule and also the elements of [H3O] before fragmentation to smaller ions. The [H3O] loss proceeds via loss of water to form a pyran ion, which subsequently eliminates a hydrogen atom to form the stable pyrillium cation.
Mpoh
Godefroy Elanga
GE
Organic Chemistry Laboratory: Structure & Reactivity, UFR-SEA, Ouagadougou University, 03 BP 7021, Ouagadougou 03, Burkina Faso, West Africa.
Tapsoba
Edouard
E
Nébié
Roger Charles
RC
Bonzi-Coulibaly
Yvonne Libona
YL
Sié
Faustin Sib
FS
D002412:Cations / Q000737:chemistry; D011721:Pyrenes / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D014867:Water / Q000737:chemistry
D002412:Cations; D011721:Pyrenes; D014867:Water