22585-81-5

Basic information

• Product Name: Phosphonic dichloride, (4-chlorophenyl)-
• CAS NO: 22585-81-5
• Molecular Formula: C6H4Cl3OP
• Molecular Weight: 229.43
• Mol File: 22585-81-5.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 121-123 °C(Press: 3 Torr)
• Density: 1.302 g/cm3(Temp: 25 °C)
• CAS DataBase Reference: Phosphonic dichloride, (4-chlorophenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonic dichloride, (4-chlorophenyl)-(22585-81-5)
• EPA Substance Registry System: Phosphonic dichloride, (4-chlorophenyl)-(22585-81-5)

Safety Data

• Hazardous Substances Data: 22585-81-5(Hazardous Substances Data)

Upstream product

• 31199-91-4 tetrachloro-(4-chloro-phenyl)-phosphorane 
• 5431-35-6 4-chlorophenylphosphonic acid 
• 75-44-5 phosgene 
• 13114-07-3 dimethyl (4-chlorophenyl)phosphonate 
• 108-90-7 chlorobenzene 
• 1005-34-1 p-chlorophenylphosphonous acid 
• 106-39-8 bromochlorobenzene 
• 1005-33-0 4-chlorophenyldichlorophosphine 

Downstream Products

• 99192-20-8 <4-Chlor-phenyl>-phosphonsaeure-di-(2-amino-aethyl)-ester 
• 83470-27-3 methyl-N-phenyl-P-p-chlorophenylphosphonamidate 
• 78-50-2 cyanex-921 
• 1005-33-0 4-chlorophenyldichlorophosphine 
• 147137-87-9 2-(4-Chlorophenyl)-1,3-dihydro-1,3,2-naphtho<1,8-cd>diazaphosphol-2-oxid 
• 147137-75-5 2-(4-Chlorophenyl)-1,3-dihydro-5-nitro-1,3,2-benzodiazaphosphol-2-oxid 
• 147137-94-8 2-(4-Chlorophenyl)-3H-1,3,2-benzothiazaphosphol-2-oxid 
• 147137-71-1 2-(4-Chlorophenyl)-1,3-dihydro-1,3,2-benzodiazaphophol-2-oxid 
• 83470-26-2 methyl NP-di(p-chlorophenyl)phosphonamidate 
• 31199-91-4 tetrachloro-(4-chloro-phenyl)-phosphorane 
• 20443-18-9 (4-chloro-phenyl)-phosphonic acid diisocyanate 
• 102176-37-4 <4-Chlor-phenyl>-phosphonsaeure-di-(6-amino-hexyl)-ester 
• 5431-35-6 4-chlorophenylphosphonic acid 
• 1535-37-1 (4-chloro-phenyl)-phosphonic acid-difluoride 

Relevant articles and documents

Reactions of amino acids with arylchlorophosphoranes and chlorophosphonium compounds

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DIARYLPHOSPHINIC AZIDES. PHOTOCHEMICAL REACTIONS INCLUDING REARRANGEMENT IN METHANOL

On photolysis in methanol the diarylphosphinic azides Ar2P(O)N3 (Ar=phenyl, p-tolyl, p-anisyl, p-chlorophenyl) rearrange with loss of nitrogen to form (monomeric) metaphosphonimidates which are trapped by the solvent to give methyl NP-diarylphosphonamidates (7) (41-53percent).Diarylphosphinic amides (18-42percent) are also usually formed, presumably from (triplet) nitrenes.The limited evidence available suggests that the rearrangements take place directly from the photo-excited azides rather than via (singlet) nitrene intermediates.One of the products of rearrangement, methyl NP-di(p-chlorophenyl)phosphonamidate, suffers extensive photochemical dechlorination giving methyl N-phenyl-P-p-chlorophenylphosphonamidate.

Process for the preparation of phosphonic acid dihalides

A process for the preparation of phosphonic acid dihalides of the formula EQU1 IN WHICH R is α, β-unsaturated alkyl, α, β-unsaturated alkyl, phenyl or benzyl and may be further substituted, which comprises reacting corresponding phosphonic or pyrophosphonic acids or their functional derivatives with acid halides of the formula (CO)n Hal2 where n is 1 or 2.