74928-91-9

Basic information

• Product Name: C₁₇H₂₀NO₃S
• Synonyms: C₁₇H₂₀NO₃S
• CAS NO: 74928-91-9
• Molecular Weight: 318.417
• Mol File: 74928-91-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₁₇H₂₀NO₃S(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₇H₂₀NO₃S(74928-91-9)
• EPA Substance Registry System: C₁₇H₂₀NO₃S(74928-91-9)

Safety Data

• Hazardous Substances Data: 74928-91-9(Hazardous Substances Data)

Upstream product

• 3376-24-7 N-tert-butyl-α-phenylnitrone 
• 2618-96-4 dibenzenesulfonamide 

Relevant articles and documents

Fluoro spin adducts and their modes of formation

The reactions of two fluorinating reagents, XeF2 and N-fluorodibenzenesulfonamide [(PhSO2)2N-F], with several spin traps have been investigated. In dichloromethane, the strong oxidant XeF2 cleanly gives fluoro spin adducts with N-tert-butyl-α-phenylnitrone (PBN) or 5,5-dimethyl-1-pyrroline 1-oxide (DMPO) according to a mechanism mediated by the radical cation of the spin trap. In both cases, further fluorination takes place with replacement of the a hydrogen by fluorine. The much weaker oxidant (PhSO2)2N-F reacts with PBN or DMPO in dichloromethane giving both the fluoro adduct and an adduct formally derived from an N-centred radical, assigned the structure of PhSO2N(F)-PBN? or (PhSO2)2N-DMPO?, respectively. This type of reaction proceeds by a version of the Forrester-Hepburn mechanism, in which an acid HA, in this case HF, initially adds to the nitrone function to give a hydroxylamine derivative which is oxidized by (PhSO2)N-F giving the fluoro spin adduct, a proton and the highly labile radical anion (PhSO2)2N-F?-. By decomposition of the latter to PhSO2(F)N- and PhSO2?, conditions are set up for propagation of the reaction by a new molecule of HA [now PhSO2(F)NH] and thus formation of the PhSO2(F)N spin adduct.