18957-70-5

Basic information

• Product Name: phenyldi-p-tolylphosphine oxide
• Synonyms: phenyldi-p-tolylphosphine oxide
• CAS NO: 18957-70-5
• Molecular Weight: 306.344
• Mol File: 18957-70-5.mol
• Article Data: 22

Chemical Properties

• CAS DataBase Reference: phenyldi-p-tolylphosphine oxide(CAS DataBase Reference)
• NIST Chemistry Reference: phenyldi-p-tolylphosphine oxide(18957-70-5)
• EPA Substance Registry System: phenyldi-p-tolylphosphine oxide(18957-70-5)

Safety Data

• Hazardous Substances Data: 18957-70-5(Hazardous Substances Data)

Usage

Description

Phenyldi-p-tolylphosphine oxide is a chemical compound with the molecular formula C21H21OP. It is a white solid that is soluble in organic solvents and has a high melting point of 195-197°C.

Uses

Used in Plastics and Polymers Industry:
Phenyldi-p-tolylphosphine oxide is used as a stabilizer and flame retardant for plastics and polymers. Its phosphorus-based structure provides excellent fire retardant properties by releasing phosphorus radicals and reducing the formation of flammable gases during combustion.
Used in Organic Synthesis and Catalysis:
Phenyldi-p-tolylphosphine oxide is used as a reagent and catalyst in organic synthesis and catalysis due to its unique reactivity and coordination abilities with transition metals. This makes it a versatile chemical with diverse applications in industry and research.

Upstream product

• 797-70-6 tri(4-methylphenyl)phosphine oxide 
• 591-51-5 phenyllithium 
• 17763-67-6 Phenyl triflate 
• 2409-61-2 di(p-tolyl)phosphine oxide 
• 106-44-5 p-cresol 
• 660-34-4 p-methy lphenylfluorosulfate 
• 613-94-5 benzoic acid hydrazide 
• 108-86-1 bromobenzene 
• 100-68-5 methyl-phenyl-thioether 
• 4294-57-9 para-methylphenylmagnesium bromide 
• 88284-48-4 2-(trimethylsilyl)phenyl trifluoromethanesulfonate 
• 591-50-4 iodobenzene 
• 100-47-0 benzonitrile 
• 603-35-0 triphenylphosphine 

Downstream Products

• 19934-95-3 (phenyl)di(4-methylphenyl)phosphine 

Relevant articles and documents

Aryltrimethylammonium Tetrafluoroborates in Nickel-Catalyzed C–P Bond-Forming Reactions

Abstract: The first nickel-catalyzed phosphorylation of aryltrimethylammonium tetrafluoroborates with the formation of C–P bond instead of C–N has been developed. Starting from easily available and inexpensive aromatic amines, a variety of important arylphosphonates have been synthesized in moderate to excellent yields.

NiCl 2as a Cheap and Efficient Precatalyst for the Coupling of Aryl Fluorosulfonate and Phosphite/Phosphine Oxide

Herein, NiCl 2is employed as a cheap precatalyst in the formation of C(sp 2)-P bond via cross-coupling reaction of phenol derivatives and phosphine oxides/phosphites. This catalytic system allows a variety of phenols with diverse functional groups to transform into phosphates with good yields. No additional additive is used in this reaction.

Controllable phosphorylation of thioesters: Selective synthesis of aryl and benzyl phosphoryl compounds

The controllable phosphorylations of thioesters were developed. When the reaction was catalyzed by a palladium catalyst, aryl or alkenyl phosphoryl compounds were generated through decarbonylative coupling, while the benzyl phosphoryl compounds were produced through deoxygenative coupling when the reaction was carried out in the presence of only a base.