23485-35-0

Basic information

• Product Name: Phosphorous acid, tris(4-nitrophenyl) ester
• CAS NO: 23485-35-0
• Molecular Formula: C18H12N3O9P
• Molecular Weight: 445.282
• Mol File: 23485-35-0.mol
• Article Data: 5

Chemical Properties

• Melting Point: 170-171 °C(Solv: acetic acid (64-19-7))
• Boiling Point: 565.5±45.0 °C(Predicted)
• CAS DataBase Reference: Phosphorous acid, tris(4-nitrophenyl) ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphorous acid, tris(4-nitrophenyl) ester(23485-35-0)
• EPA Substance Registry System: Phosphorous acid, tris(4-nitrophenyl) ester(23485-35-0)

Safety Data

• Hazardous Substances Data: 23485-35-0(Hazardous Substances Data)

Upstream product

• 100-02-7 4-nitro-phenol 

Downstream Products

• 5894-89-3 γ-benzyl α-(4-nitrophenyl) benzyloxycarbonyl-L-glutamate 
• 1168-87-2 benzyloxycarbonylalanine p-nitrophenyl ester 
• 2578-84-9 N-benzyloxycarbonyl-L-phenylalanine p-nitrophenyl ester 
• 1738-86-9 Z-Gly-ONp 
• 3304-59-4 N-benzyloxycarbonyl-L-proline p-nitrophenyl ester 
• 15030-75-8 Z-Aib-ONp 
• 47510-24-7 L-glutamic acid-5-benzyl ester-1-(4-nitro-phenyl ester) 
• 47018-64-4 p-nitrobenzoyl-L-glutamic ester 
• 2390-84-3 L-proline p-nitrophenyl ester hydrogen bromide 
• 209954-25-6 phenylalanine-(4-nitro-phenyl ester); hydrobromide 
• 5673-65-4 L-alanine p-nitrophenyl ester hydrobromide 
• 201230-82-2 carbon monoxide 
• 1241580-27-7 tris(O-4-nitrophenyl)phosphoroselenoate 
• 198983-99-2 [Pt(tris-(4-nitrophenyl) phosphite)2(norbornane)] 

Relevant articles and documents

A Comparison between Kinetic Parameters from the Synthesis of Tris(p-nitrophenyl)phosphite and Tris(p-nitrophenyl)phosphate Using Reaction Calorimetry

Tris(p-nitrophenyl)phosphite was prepared by a modification of a "one-pot" methodology developed for the preparation of triaryl phosphates. This exothermic reaction was performed in a Mettler RC-1 calorimeter. The principal aim of this work was to compare the reactivity of phosphorus trichloride and phosphorus oxychloride in their reactions with sodium p-nitrophenoxide. The reaction rate and the reaction rate constant for the synthesis of tris(p-nitrophenyl)phosphite were evaluated and compared to the obtained values for the tris(p-nitrophenyl)-phosphate synthesis. Phosphorus trichloride was found to react faster than phosphorus oxychloride, but the reaction with the phosphorus oxychloride proved to be more exothermic.

Substituent effects on 31P NMR chemical shifts and 1J P-Se of triarylselenophosphates

The effect of electron-withdrawing (EW) and electron-releasing (ER) substituents on the 31P NMR chemical shifts and the structural parameters of a series of tris-(p-X-aryl)selenophosphates is reported in this article. Similarly to O-aryl phosphates and O-aryl thiophosphates, EW groups attached to aromatic rings induce a shielding effect on the 31P NMR signal. After a detailed experimental and theoretical analysis, we confirmed that the selenium atom is the main part responsible for the charge density transfer toward phosphorus through a back-bonding effect. The obtained 1JP-Se values for the complete series agree with this observation. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file.

A new method for the synthesis of nucleoside 2′,3′-O,O-cyclic phosphorodithioates via aryl cyclic phosphites as intermediates

The reaction of 5′-O-protected ribonucleosides with tri(4-nitrophenyl) phosphite in the presence of pyridine furnished rapid formation of the corresponding 4-nitrophenyl 2′,3′-O,O-cyclic phosphites which upon sulfhydrolysis, followed by sulfurization of t