60705-73-9

Basic information

• Product Name: bis(4-methoxyphenyl) methylphosphonate
• Synonyms: Phosphonic acid, methyl-, bis(4-methoxyphenyl) ester
• CAS NO: 60705-73-9
• Molecular Formula: C₁₅H₁₇O₅P
• Molecular Weight: 308.2662
• Mol File: 60705-73-9.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 425°C at 760 mmHg
• Flash Point: 224.3°C
• Density: 1.213g/cm³
• Vapor Pressure: 4.89E-07mmHg at 25°C
• Refractive Index: 1.537
• CAS DataBase Reference: bis(4-methoxyphenyl) methylphosphonate(CAS DataBase Reference)
• NIST Chemistry Reference: bis(4-methoxyphenyl) methylphosphonate(60705-73-9)
• EPA Substance Registry System: bis(4-methoxyphenyl) methylphosphonate(60705-73-9)

Safety Data

• Hazardous Substances Data: 60705-73-9(Hazardous Substances Data)

Upstream product

• 150-78-7 1,4-dimethoxybezene 
• 676-97-1 methylphosphonic acid dichloroanhydride 
• 150-76-5 4-methoxy-phenol 

Downstream Products

• 993-13-5 methylphosphonic acid 
• 2132-80-1 4,4'-Dimethoxybiphenyl 
• 66731-04-2 2,4',5-trimethoxy-1,1'-biphenyl 
• 756-79-6 dimethyl methane phosphonate 
• 16391-06-3 methyl hypophosphorous acid methyl ester 
• 27983-20-6 2,6-Dimethoxydibenzodioxin 

Relevant articles and documents

New feature of Friedel-Crafts phosphonation of anisoles: Unexpected in situ methylphosphorylation reaction

Anisoles 1, reacting with AlCl3 and PCl3 with appropriate reagent ratios, give, in good yields, the corresponding diaryl methylphosphonates 2 or the methylphoshinates 3b,c and the methylphosphine oxides 4b,c. This unexpected in situ methylphosphorylation explains the reported limited and conflicting results to obtain methoxy-substituted arylphosphonous dichloride with the same reagents. A suggested mechanism is also reported.

PHOTOLYSIS OF ARYL ESTERS OF TRI- AND TETRACOORDINATED PHOSPHORUS COMPOUNDS

Upon UV excitation in methanol, some diaryl esters of alkly- or alkenyl phosphonates underwent an elimination of two aryl groups to give biaryls and the corresponding alkyl- or alkenylphosphonic acids.Tris(4-methoxyphenyl) phosphite also underwent a similar elimination to give 4,4'-dimethoxybiphenyl and 4-methoxyphenyl phosphonate.This interesting biaryl elimination was confirmed to proceed via a singlet intramolecular excimer by means of fluorescence spectra and Stern-Volmer analysis.

Synthesis and fungicidal activity of diaryl methylphosphonates

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