55553-94-1

Basic information

• Product Name: Phosphonic acid, (2-ethoxy-5-methyl-2-oxido-3-phenyl-1,2-oxaphospholan-5-yl)-, diethyl ester
• CAS NO: 55553-94-1
• Molecular Formula: C16H26O6P2
• Molecular Weight: 376.326
• Mol File: 55553-94-1.mol

Chemical Properties

• CAS DataBase Reference: Phosphonic acid, (2-ethoxy-5-methyl-2-oxido-3-phenyl-1,2-oxaphospholan-5-yl)-, diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonic acid, (2-ethoxy-5-methyl-2-oxido-3-phenyl-1,2-oxaphospholan-5-yl)-, diethyl ester(55553-94-1)
• EPA Substance Registry System: Phosphonic acid, (2-ethoxy-5-methyl-2-oxido-3-phenyl-1,2-oxaphospholan-5-yl)-, diethyl ester(55553-94-1)

Safety Data

• Hazardous Substances Data: 55553-94-1(Hazardous Substances Data)

Upstream product

• 762-04-9 phosphonic acid diethyl ester 
• 1896-62-4 (E)-benzalacetone 
• 762-04-9 Diethyl phosphonate 
• 122-57-6 1-Phenylbut-1-en-3-one 

Relevant articles and documents

Lanthanide-catalyzed selective addition of diethyl phosphite to chalcones

Lanthanide-catalyzed addition of diethyl phosphite with chalcones was achieved under mild conditions. The reaction exhibited good product selectivity using different catalysts. γ-Oxophosphonates were obtained in high yields in the reactions catalyzed by Y

1,2-Oxaphospholanes

2-Oxo-2-alkoxy-5-dialkylphosphono-1,2-oxaphospholanes of the formula STR1 in which R1 to R7 are hydrocarbon radicals can be prepared from α,β-unsaturated ketones and 2 or more moles of a dialkyl phosphite. Obviously α-ketophosphonates are intermediates of this reaction, as these compounds react with 1 or more moles of dialkyl phosphite in yielding the oxaphospholanes too. Both reactions are promoted by alkaline catalysts. The new oxaphospholane derivatives are considerably stable against thermal decomposition. They are compatible with polymeric materials and can be used as flame protecting agent for plastics and resins, for example, in polyurethane foams.