133483-71-3

Upstream product

• 501-65-5 diphenyl acetylene 
• 132130-79-1 (Z)-1-bromo-2-p-fluorophenylsulphonylstilbene 
• 132130-76-8 (E)-1-bromo-2-p-fluorophenylsulphenylstilbene 
• 132130-72-4 (Z)-1-p-fluorophenylsulphenylstilbene 
• 132130-71-3 (E)-1-p-fluorophenylsulphenylstilbene 
• 133483-72-4 (Z)-1-p-fluorophenylthio-2-p'-fluorophenylsulphonylstilbene 
• 132130-74-6 (Z)-1,2-bis(p-fluorophenylsulphenyl)stilbene 
• 371-42-6 4-Fluorothiophenol 
• 1535-35-9 4-fluorobenzenesulphenyl chloride 

Relevant academic research and scientific papers

SYNTHESES AND MASS SPECTRAL REARRANGEMENTS OF UNSATURATED BIS-SULPHIDES AND BIS-SULPHONES

The synthesis of (E)- and (Z)-1,2-bis(p-fluorophenylsulphenyl)stilbenes (2a and 2b) and 1,2-bis(p-fluorophenylsulfonyl)stilbenes (3a and 3b) was carried out and their configurations were consistent with their stereospecific synthesis.The isomeric 1,1-bis(p-fluorophenylsulphenyl)- and 1,1-bis(p-fluorophenylsulphonyl)-2,2-bis(phenyl)ethylenes (8 and 9) were also synthesised and configurations were established by degradative oxidation.Mass spectral rearrangements of all these compounds were examined.Mass spectra of 1,1-bis-sulphide and 1,1-bis-sulphone bears close relationship with those of (E)- and (Z)-isomeric counterparts.Smiles-type rearrangement observed in 1,2-bis-sulphides was absent in 1,2-bis-sulphones.McLafferty-type rearrangement involving hydrogen migration, from aryl group was noticed in both bis-sulphides and bis-sulphones.Vinyl migration to the sulphone oxygen predominates over aryl migration in three isomeric bis-sulphones.