𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Mass spectra of N-substituted cantharidinimides

✍ Scribed by Pen-Y. Lin; Shaw-T. Lin; David W.-M. Liang


Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
116 KB
Volume
39
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The mass spectra of a series of N‐substituted cantharidinimides were examined. The feature of this series compounds is a sequential double hydrogen transfer from the oxabicycloheptane unit to either the carbonyl group of the succinimide unit or the nitrogen atom of the pyridyl or thiazolyl substituent through space. The ability of the N‐substituent to accept a hydrogen atom possibly leads to the different fragmentation pathway. Copyright Β© 2004 John Wiley & Sons, Ltd.


πŸ“œ SIMILAR VOLUMES


Mass spectra of substituted pyrrolidine-
✍ Gyula Jerkovich; H. Olga Hankovszky; KΓ‘lmΓ‘n Hideg πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 494 KB

Electron impact m a s spectra of 65 pyrrolidine-N-oxyl derivatives have been assigned on a 'peak-to-subgraph' basis. On average, 50% of the total ion current is represented by structurally significant fragments associated with the nitroxide group. Secondary fragmentation is, as a rule, of a minor im

Mass spectra of substituted dihydrocbalc
✍ K. V. Wood; C. C. Bonham; M. L. Whitelaw; J. R. Daniel πŸ“‚ Article πŸ“… 1991 πŸ› John Wiley and Sons 🌐 English βš– 131 KB

New Mass Spectra ## Mass Spectra of Substituted Dihydrochalcones The search for non-caloric, non-cariogenic sweetening agents is being actively pursued worldwide. The dihydrochalcones are ideal candidates for sweetener development owing to their intense sweetness (300-600 times that of sucrose),

Mass spectra of the substituted quinucli
✍ R. G. Kostyanovsky; E. E. Mikhlina; E. I. Levkoeva; L. N. Yakhontov πŸ“‚ Article πŸ“… 1970 πŸ› John Wiley and Sons 🌐 English βš– 245 KB
Mass spectra of N-arylaminosulphonylcarb
✍ Albert T. Lebedev; Vasily A. Bakulev; Mikhail Yu. Kolobov πŸ“‚ Article πŸ“… 1991 πŸ› John Wiley and Sons 🌐 English βš– 245 KB

The electron impact mass spectra of N-arylaminosulphonylcarbethoxydiazoacetamides were studied. On the basis of high-resolution mass spectrometric data, mass-analysed ion kinetic energy spectrometry and linked scan experiments a detailed scheme of the fragmentation is proposed. A number of possibili