Phosphoric anhydride

Base Information

• Chemical Name: Phosphoric anhydride
• CAS No.: 16752-60-6
• Molecular Formula: O10P4
• Molecular Weight: 283.889
• DSSTox Substance ID: DTXSID701335584
• Wikidata: Q369309
• Mol file: 16752-60-6.mol

Synonyms:P2O5;phosphoric anhydride;phosphorus pentoxide

Chemical Property of Phosphoric anhydride

Chemical Property:

• Melting Point: 562oC
• Boiling Point: °Cat760mmHg
• Flash Point: °C
• PSA: 162.90000
• Density: 2.46g/cm³
• LogP: 2.55920
• XLogP3: -2.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 10
• Rotatable Bond Count: 0
• Exact Mass: 283.84419418
• Heavy Atom Count: 14
• Complexity: 327

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: O=P12OP3(=O)OP(=O)(O1)OP(=O)(O2)O3

Technology Process of Phosphoric anhydride

There total 7 articles about Phosphoric anhydride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

arsenic(III) trioxide + trichlorophosphate (10025-87-3,12599-09-6,63736-95-8,39380-77-3) → phosphorus pentoxide (16752-60-6) + arsenic trichloride (7784-34-1)

Guidance literature:

In neat (no solvent); heated for 50 h, cooled; filtered, dissolved in water, analyzed by NMR;

Reference yield:

cerium(IV) oxide + phosphorus → cerium (7440-45-1) + phosphorus pentoxide (16752-60-6)

Guidance literature:

Reference yield:

phosphorus(III) oxide (12440-00-5) → tetraphosphorus octaoxide (70983-17-4) + P4O7 (12065-80-4) + tetraphosphorus nonaoxide (12037-11-5) + phosphorus pentoxide (16752-60-6)

Guidance literature:

With oxygen; In solid matrix; Irradiation (UV/VIS); codeposition of microwave-discharged Ar/O2 mixt. (50/1-100/1) with Ar/P4O6 (15+/-2 K), photolysis (filtered mercury arc);

DOI:10.1021/j100345a024

upstream raw materials:

silica gel

trichlorophosphate

phosphorus(III) oxide

Downstream raw materials:

phosphoric acid

pyrophosphoric acid

tetrametaphosphoric acid

trifluorophosphoric acid

Refernces

Highly Effective Catalysts for the Conjugate Addition of Silyl Ketene Acetals to Enones (Mukaiyama-Micael Reaction)

10.1016/S0040-4039(00)76519-1

The study explored the conjugate addition reaction of silyl ketene acetals to enones, known as the Mukaiyama-Michael reaction. The study aimed to explore why the reaction was previously reported to proceed without a catalyst in acetonitrile solvent, but the researchers were unable to replicate the reaction. phosphorus pentoxide (P4O10) plays a pivotal role as a catalyst for the Mukaiyama-Michael reaction. The study initially aimed to understand why the conjugate addition of silyl ketene acetals to enones, reported to proceed without a catalyst in acetonitrile solvent, could not be replicated by the researchers. They discovered that acetonitrile dried with P4O10 contained trace amounts of phosphorus compounds, which were essential for the reaction's success. When small amounts of P4O10 were added to the reaction mixture or when acetonitrile was dried with P4O10, the reaction proceeded with excellent yields and improved reaction rates. The presence of P4O10 not only enhanced the catalytic activity but also led to the development of an even more effective catalyst system when combined with diisopropylamine. This combination further increased the reaction speed by a factor of approximately 1.7 and resulted in purer products. The study concluded that the effectiveness of acetonitrile as a solvent for the non-catalytic Mukaiyama reaction may be due to the presence of phosphorus compounds, and the newly developed catalyst system is very effective for a variety of substrates.