104856-81-7

Basic information

• Product Name: diphenyl (prop-2-yn-1-yl)phosphine oxide
• Synonyms: diphenyl (prop-2-yn-1-yl)phosphine oxide
• CAS NO: 104856-81-7
• Molecular Weight: 240.241
• Mol File: 104856-81-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: diphenyl (prop-2-yn-1-yl)phosphine oxide(CAS DataBase Reference)
• NIST Chemistry Reference: diphenyl (prop-2-yn-1-yl)phosphine oxide(104856-81-7)
• EPA Substance Registry System: diphenyl (prop-2-yn-1-yl)phosphine oxide(104856-81-7)

Safety Data

• Hazardous Substances Data: 104856-81-7(Hazardous Substances Data)

Upstream product

• 603-35-0 triphenylphosphine 
• 106-96-7 propargyl bromide 
• 41593-58-2 diphenylphosphineborane 
• 2091-46-5 triphenyl(prop-2-ynyl)phosphonium bromide 
• 4559-70-0 Diphenylphosphine oxide 

Relevant articles and documents

Evidence of Phosphonium-Carbenium Dication Formation in a Superacid: Precursor to Fluorinated Phosphine Oxides

Unambiguously confirmed by low-temperature in situ NMR experiments, X-ray diffraction and vibrational spectroscopy, phosphonium-carbenium superelectrophiles are shown to be generated in strong acidic conditions. Representing crucial intermediates, their exploitation allows for the synthesis of unprecedented fluorinated (cyclic) phosphine oxides.

OXYGEN INSERTION IN THE P-C BOND IN REACTIONS OF DIETHYL- AND DIPHENYLPHOSPHINOUS ACIDS WITH 2-PROPYNYL BROMIDES UNDER CONDITIONS OF PHASE-TRANSFER CATALYSIS IN THE PRESENCE OF POTASSIUM CARBONATE

Oxygen insertion in the P-C bond, occuring in the reaction of secondary phosphine oxides with 2-propynyl bromide and its homologs under conditions of phase-transfer catalysis in the presence of potassium carbonate, was found to have a general character.