128736-56-1

Basic information

• Product Name: 1-phenyl-2-(phenylseleno)-1-ethenol p-toluenesulfonate
• Synonyms: 1-phenyl-2-(phenylseleno)-1-ethenol p-toluenesulfonate
• CAS NO: 128736-56-1
• Molecular Weight: 429.398
• Mol File: 128736-56-1.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1-phenyl-2-(phenylseleno)-1-ethenol p-toluenesulfonate(CAS DataBase Reference)
• NIST Chemistry Reference: 1-phenyl-2-(phenylseleno)-1-ethenol p-toluenesulfonate(128736-56-1)
• EPA Substance Registry System: 1-phenyl-2-(phenylseleno)-1-ethenol p-toluenesulfonate(128736-56-1)

Safety Data

• Hazardous Substances Data: 128736-56-1(Hazardous Substances Data)

Upstream product

• 1666-13-3 diphenyl diselenide 
• 104-15-4 toluene-4-sulfonic acid 
• 536-74-3 phenylacetylene 
• 16836-95-6 silver(I) 4-methylbenzenesulfonate 
• 788-86-3 p-tolylsulfinyl p-tolyl sulfone 
• 128736-52-7 benzeneselenenyl p-toluenesulfonate 
• 5707-04-0 Phenylselenyl chloride 

Downstream Products

• 98-85-1 1-Phenylethanol 

Relevant articles and documents

SYNTHETIC AND MECHANISTIC ASPECTS OF SOME FREE-RADICAL AND ELECTROPHILIC ORGANOSELENIUM REACTIONS

Selenenic derivatives such as selenosulfonates (PhSeSO2Ar) and selenenyl sulfonates (PhSeOSO2Ar) undergo free-radical and electrophilic additions to unsaturated organic substrates, often with high regio- and stereoselectivity.These processes can be employed in tandem with selenoxide eliminations, -sigmatropic rearrangements and various types of substitution and reduction reactions of the selenium moiety.Applications include preparations of various types of synthetically useful unsaturated sulfones and a new protocol for the synthesis of sterol side chains, such as that of the plant growth-promoter brassinolide.

Benzeneselenenyl p-toluenesulfonate: Formation and electrophilic addition to acetylenes

The title compound 1 was produced in situ from PhSeCl and AgOSO2Ar (Ar = p-tolyl), and underwent electrophilic addition of acetylenes to afford adducts 2. The same products were unexpectedly formed from the reaction of ArSO3H and AIBN, or from the pyrolysis of ArS(O)SO2Ar, in the presence of acetylenes and PhSeSePh.