Mass spectra of 1,3-dithiaspiranes and 2-aryl-1,3-dithianes
โ Scribed by Gong-Yih Shiue; Shaw-Tao Lin; Yueh-Hsiung Kuo; Zong-Shiow Chen
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 365 KB
- Volume
- 30
- Category
- Article
- ISSN
- 1076-5174
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โฆ Synopsis
Abstract
The mass spectra of 20 1,3โdithianes were studied. The fragmentation patterns including the loss of 74 u and 107 u and clearage of the substituent at Cโ2 depended strongly on the nature of the substituents at that position. 2,2โDiphenylโ1,3โdithiane undergoes an atypical fragmentation in which two hydrogens migrate from the phenyl ring, with the formation of a fluorene skeleton.
๐ SIMILAR VOLUMES
The electron impact (EI) mass spectra of sixteen l-aryl-2,2dibromocyclopropanes give an ion at m/z 115, the structure of which is proposed to be the indenium ion based on a collision-activated decomposition experiment.
We report here the electron impact (EI) mass spectra of eight 3-phenyi-2,l -benzisoxazoles (l), seven of which bear substituents in the benzo ring at positions 5 or 6. H 1 (Ph=C,H,) 2 a These two ions, C,, H, and CloH,N, could not be resolved from one another or from '2C,0'3C,H7. The experimental ma