Mass-spectral and n.m.r. analysis of thiophenes labeled by exchange with deuteriosulfuric acid establishes that exchange at the 2 and 5 positions is essentially complete before any deuterium is incorporated at positions 3 and 4. Thus, such exchange is a satisfactory procedure for positionspecific la
Organic ions in the gas phase. Part XX. Mass spectra of phenylthiophenes
✍ Scribed by Seymour Meyerson; E. K. Fields
- Publisher
- John Wiley and Sons
- Year
- 1968
- Tongue
- English
- Weight
- 497 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The dipole moments of a series of substituted benzene radical cations were evaluated on the basis of mass displacements from the expected instrumental value by ion trap experiments. Mass displacements represent a direct measure of the total polarizability, giving access to both the electronic and di
## Abstract Functional group interaction occurs in the loss of a phenoxy radical from the molecular ions of ω‐phenylthio alkylphenylethers ØO(CH~2~)~__n__~SØ (__n__ = 2–6). Labelling data provide evidence for the S‐phenyl thietanium, S‐phenyl tetrahydrothiophenium and S‐phenyl tetrahydrothiopyraniu
The loss of alkanes from ionized aliphatic alkanes, alcohols, ketones, ethers or amines takes place by a 1,2elimination involving a C -C bond cleavage and the specific rearrangement of a hydrogen atom to the incipient radical. This reaction should normally occur within a limited distance between the