Benzyl ions in the mass spectra of fluoro n-alkylbenzenes
β Scribed by S. Majeti; D.A. Lightner
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- French
- Weight
- 170 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
The question of benzyl vs tropylium structures for ions of the general formula XC7H6+ has received renewed attention recently in the electron impact mass spectra of nitrobenzyl compounds (l), bibenzyls (Z), benzyl phenyl ethers (1,3,4), and n-butylbenzenes (5). Evidence for benzyl ion structures has been presented in those cases; whereas, the commonly accepted structure for C7H7+ and related ions is a symmetrical (tropylium) ion ( ). In studies on deuterium and C 13 -
π SIMILAR VOLUMES
## Abstract The electron impact mass spectra of a large number of benzyl esters of carboxylic acids are reported. The fragmentation behaviour is discussed and the esters are divided into groups according to structure and fragmentation. For most esters benzylic cleavage with H transfer competes with
Using specific deuterium labelling the mechanisms of the olefin elimination reactions leading to formation of [C,H,]+ in the H, and CH, chemical ionization mass spectra of ethylbenzene and n-propylhenzene (and to [C,H,C,HJ+ in the CH, chemical ionization mass spectra) have been investigated. The res