31398-97-7

Basic information

• Product Name: 1,4-Dihydro-2,4,6-triphenyl-4-oxo-1,4-oxaphosphorin
• Synonyms: 1,4-Dihydro-2,4,6-triphenyl-4-oxo-1,4-oxaphosphorin
• CAS NO: 31398-97-7
• Molecular Weight: 344.35
• Mol File: 31398-97-7.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 1,4-Dihydro-2,4,6-triphenyl-4-oxo-1,4-oxaphosphorin(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Dihydro-2,4,6-triphenyl-4-oxo-1,4-oxaphosphorin(31398-97-7)
• EPA Substance Registry System: 1,4-Dihydro-2,4,6-triphenyl-4-oxo-1,4-oxaphosphorin(31398-97-7)

Safety Data

• Hazardous Substances Data: 31398-97-7(Hazardous Substances Data)

Upstream product

• 37755-72-9 1-phenyl-2-(phenyl-phenylethynyl-phosphinoyl)-ethanone 
• 34735-01-8 Bis<2-phenyl-2-oxoethyl>phenylphosphine oxide 
• 95-54-5 1,2-diamino-benzene 
• 21680-87-5 2,4,6-triphenyl-4-phenylethynyl-4H-[1,4]oxaphosphininium; bromide 
• 21680-84-2 2,4,4,6-tetraphenyl-4H-[1,4]oxaphosphininium; bromide 
• 31398-95-5 phenylbis(phenylethynyl)phosphine oxide 

Downstream Products

• 51104-33-7 Phenyl-(2-phenyl-2-oxo)ethylphosphinsaeuremethylester 
• 536-74-3 phenylacetylene 

Relevant articles and documents

Gold(I)-Catalyzed Synthesis of Six-Membered P,O-Heterocycles via Hydration/Intramolecular Cyclization Cascade Reaction

Herein, we report the synthesis of six-membered P,O-heterocycles from dialkynylphosphine oxides. By using gold(I) complexes, the chemoselectivity of the reaction was switched from literature-reported double hydration to a hydration/intramolecular cyclization cascade. Control experiments indicated that the first alkyne hydration product is an intermediate of the reaction. In addition, a density functional theory (DFT) calculation allowed to rationalize the observed chemoselectivity. (Figure presented.).