✦ LIBER ✦

Mass spectrometric studies of heterocyclic organophosphorus compounds: 1,3,2-benzodioxaphospholes

✍ Scribed by Guo Hangzhou; Kinghunt Tsao; Li Yu-Gui; Wangjian

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 462 KB
Volume: 21
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210210509

No coin nor oath required. For personal study only.

✦ Synopsis

The mass spectral behaviour of a new type of organophosphorus compound, 1,3,2-benzodioxaphospholes, under 70 eV electron impact has been studied by means of high and low resolution mass spectrometry as well as by BIE and B2/E linked scans. The influence of different substituents in the molecule (0, S or N) on the mass spectra is investigated. The reason for isomerhation between oxygen and sulphur within a molecule studied by mass spectrometry is discussed.

📜 SIMILAR VOLUMES

Mass spectrometric studies of organophos

Mass spectrometric studies of organophosphorus compounds: III—Remarkable migration of chalcogen on electron impact of organophosphorus compounds

✍ Helmut Keck; Wilhelm Kuchen; Hans F. Mahler 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 168 KB

Ion mobility spectrometric studies of or

Ion mobility spectrometric studies of organophosphorus compounds

✍ Zeev Karpas; Yaffa Pollevoy 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 468 KB

The mobMy spectra of several organophosphorus compounds were measured by 1011 mobility spectrometric methods The correlation between the mass and structure of the Ions formed and theu mob&y was mvestlgated It was found that compounds m wluch the phosphorus atom IS tnvalent had lugher mobdltles than

Mass spectrometric studies of sulfur com

Mass spectrometric studies of sulfur compounds. Some 1-(5-ethyl-2-thienyl)-1-thiaalkanes

✍ Norman G. Foster; Pisal Chandrasurin; Robert W. Higgins 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 509 KB

Mass spectrometric studies of acetylacet

Mass spectrometric studies of acetylacetonato (carbonyl) rhodium compounds

✍ Zhou Hua 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB

## OMS Letters Dear sir, The fragmntaticm of the three following carq?lexes has been studied: acetylacetonato (dicarbonyl) rhcdium Rh(o3) (acac) -1; acetylacetomto (triphenylphosphine) ( c a r h y l ) rhodium Rh(c0) (Pph,) (acac) -2; p h e n y l a ~~~~t c m a t o (dicarbonyl) rhodium Rh (03) 2 (ph

Mass spectrometric fragmentation of the

Mass spectrometric fragmentation of the tautomers of 1,3-diketones. A gas chromatographic/mass spectrometric study

✍ Monika Masur; Hans-Fr. Grützmacher; Helmut Münster; Herbert Budzikiewicz 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 539 KB

The diketo and ketoenol tautomers of aliphatic 1,3-diketones can be easily separated by gas chromatography. The mass spectra of tautomers of pentane-2P-diones substituted at C(1) and C(3), separated in this way, have been obtained. The fragmentation mechanisms are discussed. The mass spectra of the

Mass spectrometric study of 2-acyloxy-4,

Mass spectrometric study of 2-acyloxy-4,6-dimethoxy-1,3,5-triazines

✍ Marek Sochacki; Zbigniew J. Kami 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 275 KB

Electron impact ionization mass spectra of 2-acyloxy-4,6-dimethoxy-l,3,5-triazines were examined. Two general pathways of fragmentation were found: (i) formation of an acylium ion, typical for all the compounds studied, and (ii) rearrangement followed by loss of carbon monoxide, characteristic of de