𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Mass spectrometry of N-methylsulfonylureas. A re-examination

✍ Scribed by Aaron D. Kossoy; John L. Occolowitz


Publisher
John Wiley and Sons
Year
1978
Tongue
English
Weight
332 KB
Volume
5
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis


Some confusion has arisen in the literature regarding the electron impact mass spectrum of N-methyltolbutamide. The situation is complicated by the thermal lability of this compound which causes the formation of the corresponding N-methylsulfonamide. We present here spectral data at relatively low probe temperatures (and without an intervening gas chromatographic system) which we believe define the mass spectrum of N-methyltolbutamide more accurately than before. Similar data are presented for the analogous N-methylacetohexamide and show a rearrangement process for both substances not reported previously for this class of compounds.


πŸ“œ SIMILAR VOLUMES


Structural Examination of Supramolecular
✍ Christoph A. Schalley; JosΓ© M. Rivera; TomΓ‘s MartΓ­n; Javier SantamarΓ­a; Gary Siu πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 316 KB πŸ‘ 2 views

Reversibly self-assembling host-guest complexes of the these hydrogen-bonded complexes is retained in the gas phase with the guests inside their cavity. The results parallel softball type are characterized by electrospray ionization mass spectrometry. Quaternary ammonium ions serve findings from sol

Thermospray mass spectrometry of N-methy
✍ Jacob Saar; Avraham Salomon πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 316 KB

The thermospray mass spectrometry (TSP/MS) of five N-methylcarbamates is presented. This is the first time that ions other than [M + HI+ and [M + NHJ+ have been reported using positive TSP/MS. Protonation of ROCONHCH, yields the [CH3NHzCO]+' ion, with formation of the ion-molecule adduct [ROCONHCH,

A re-examination of the stationarity of
✍ Steven Cook πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 77 KB

## Abstract In a recent examination of the integrated nature of inflation, Culver and Papell (__Journal of Applied Econometrics__, 1997) applied a range of unit root and stationarity tests to data from a panel of 13 OECD economies. The results obtained were mixed. While little evidence of stationar