31247-21-9

Basic information

• Product Name: 2,3-diphenylthiirene 1-oxide
• Synonyms: Thiirene, diphenyl-, 1-oxide
• CAS NO: 31247-21-9
• Molecular Formula: C₁₄H₁₀OS
• Molecular Weight: 226.2936
• Mol File: 31247-21-9.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 427.7°C at 760 mmHg
• Flash Point: 212.5°C
• Density: 1.34g/cm³
• Vapor Pressure: 4.01E-07mmHg at 25°C
• Refractive Index: 1.729
• CAS DataBase Reference: 2,3-diphenylthiirene 1-oxide(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-diphenylthiirene 1-oxide(31247-21-9)
• EPA Substance Registry System: 2,3-diphenylthiirene 1-oxide(31247-21-9)

Safety Data

• Hazardous Substances Data: 31247-21-9(Hazardous Substances Data)

Upstream product

• 501-65-5 diphenyl acetylene 

Downstream Products

• 23873-81-6 benzildioxime 
• 952-06-7 deoxybenzoin oxime 
• 69719-58-0 phenyl(1,2,2-triphenylvinyl)sulfane 
• 94731-68-7 N-tosylmonothiobenzilimine 
• 501-65-5 diphenyl acetylene 
• 134-81-6 benzil 

Relevant articles and documents

[1 + 2] Cycloadditions of sulfur monoxide (SO) to alkenes and alkynes and [1 + 4] cycloadditions to dienes (polyenes). Generation and reactions of singlet SO?

The Diels-Alder adduct, produced from 3,4-di-tert-butylthiophene 1-oxide and dimethyl acetylenedicarboxylate, spontaneously extrudes sulfur monoxide (SO) at room temperature and serves as a new method for generation of SO under mild conditions. Thus, the SO generated underwent [1 + 2] cycloadditions to a series of alkenes and alkynes to produce thiirane oxides and thiirene 1-oxides, respectively, providing new syntheses of the sulfur-containing three-membered heterocycles. The SO also reacted with a variety of cyclic and acyclic dienes to give the corresponding 2,5-dihydrothiophene 1-oxides. Copyright