224575-62-6

Basic information

• Product Name: Phosphonic acid, [1-[(1,1-dimethylethyl)(1-phenylethoxy)amino]-2,2-dimethylpropyl]-, diethyl ester
• CAS NO: 224575-62-6
• Molecular Formula: C21H38NO4P
• Molecular Weight: 399.511
• Mol File: 224575-62-6.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: Phosphonic acid, [1-[(1,1-dimethylethyl)(1-phenylethoxy)amino]-2,2-dimethylpropyl]-, diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonic acid, [1-[(1,1-dimethylethyl)(1-phenylethoxy)amino]-2,2-dimethylpropyl]-, diethyl ester(224575-62-6)
• EPA Substance Registry System: Phosphonic acid, [1-[(1,1-dimethylethyl)(1-phenylethoxy)amino]-2,2-dimethylpropyl]-, diethyl ester(224575-62-6)

Safety Data

• Hazardous Substances Data: 224575-62-6(Hazardous Substances Data)

Upstream product

• 227000-10-4 diethyl 2,2-dimethyl-1-(1,1-dimethylethylamino)propylphosphonate 
• 34713-70-7 2-Phenylpropanal 
• 188526-94-5 N-(2-methyl-2-propyl)-N-(1-diethylphosphono-2,2-dimethylpropyl)aminoxyl 
• 585-71-7 (1-bromoethyl)benzne 
• 24292-42-0 (1-phenyl-ethyl)-hydrazine 
• 91076-36-7 N-(2,2-Dimethylpropylidene)-1,1-dimethylethanamin 

Downstream Products

• 2348-51-8 1-phenylethyl radical 
• 188526-94-5 N-(2-methyl-2-propyl)-N-(1-diethylphosphono-2,2-dimethylpropyl)aminoxyl 

Relevant articles and documents

Controlled polymerization of functional monomers and synthesis of block copolymers using a β-phosphonylated nitroxide

4-Vinylpyridine (4VP) and N,N-dimethylacrylamide (DMAA) were polymerized in a controlled manner using a β-phosphorylated nitroxide (N-tert-butyl-N-(1-diethylphosphono-2,2-dimethyl-propyl) nitroxide, commonly designated as DEPN) as a control agent. Compared to the results that had previously been reported for the nitroxide-mediated radical polymerization (NMRP) with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO), the polymerization of 4VP was much faster and very well controlled up to higher monomer conversions. Unlike 4VP, the controlled radical polymerization of DMAA using different types of nitroxides had so far remained limited to a very low conversion range (typically inferior to 10%). The use of DEPN gave rise to a very significant improvement of the NMRP of DMAA by providing a good control up to high conversion (approximately 60%). For the first time, the ability of DEPN to control the homopolymerization of DMAA even at high conversion allowed the synthesis of poly(DMAA-b-4VP) block copolymers with a hydrophilic poly(DMAA) block whichw as longer than the poly(4VP) block. This particular feature should fairly improve the hydrosolubility of the derived amphiphilic cationic polymers, which can be obtained by simple quaternization of the former block copolymers, and extend the scope of their applications.

PROCESS FOR THE PREPARATION OF STERICALLY HINDERED NITROXYL ETHERS

The present invention relates to a novel process for the preparation of a sterically hindered nitroxyl ether from the corresponding sterically hindered nitroxyl radical by reacting it with a carbonyl compound and a hydroperoxide. The compounds prepared by this process are effective stabilizers for polymers against harmful effects of light, oxygen and/or heat, as flame-retardants for polymers and as polymerization regulators.

Method for preparing alkoxyamines from nitroxides

The invention relates to a process for preparing alkoxyamines. This process consists in mixing, in an organic solvent, a metal salt, a ligand for the metal, a halocarbon compound ZX and a nitroxide, in keeping the reaction medium stirring at a temperature of between 20° C. and 90° C. until the nitroxide has disappeared, in recovering the organic phase, in washing it with water and then in isolating the alkoxyamine by evaporating the organic solvent under reduced pressure.