212373-96-1

Basic information

• Product Name: 1,3,3-Triphenyl-3H-4-oxa-3λ⁴-selena-fluoren-9-one
• Synonyms: 1,3,3-Triphenyl-3H-4-oxa-3λ⁴-selena-fluoren-9-one
• CAS NO: 212373-96-1
• Molecular Weight: 479.437
• Mol File: 212373-96-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1,3,3-Triphenyl-3H-4-oxa-3λ⁴-selena-fluoren-9-one(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3,3-Triphenyl-3H-4-oxa-3λ⁴-selena-fluoren-9-one(212373-96-1)
• EPA Substance Registry System: 1,3,3-Triphenyl-3H-4-oxa-3λ⁴-selena-fluoren-9-one(212373-96-1)

Safety Data

• Hazardous Substances Data: 212373-96-1(Hazardous Substances Data)

Upstream product

• 2170-06-1 1-Phenyl-2-(trimethylsilyl)acetylene 
• 7304-91-8 diphenylselenoxide 
• 606-23-5 1H-indene-1,3(2H)-dione 

Downstream Products

• 1132-39-4 diphenylselenide 

Relevant articles and documents

Reactions of Diphenyl(phenylethynyl)selenonium Salts with Active Methylene Compounds and Amides: First Isolation of Oxyselenuranes [10-Se-4(C3O)] as a Reaction Intermediate

The reaction of the diphenyl(phenylethynyl)selenonium triflate 1a with active methylene compounds 5 and t-BuOK in THF gave furan derivatives 6. The [10-Se-4(C3O)l selenuranes 8a and 8b could be isolated from the reactions with benzoylacetonitrile 5f and with 1,3-indandione 5g, respectively, as reaction intermediates. The structures of the selenuranes 8 were elucidated by X-ray crystallography and 77Se high-resolution solid-state NMR spectroscopy. The selenuranes 8 underwent ligand coupling on standing at room temperature or refluxing in chloroform and gave the furan derivatives 6 and the ring-opened product 9. Similarly, the reaction of 1a with benzamide 13a and pivalamide 13d in the presence of NaH in THF afforded oxazole derivatives 14.